Home / 1,027,487,390.76-1,417,933,515.78-557,588,716.20

Finding the Fourth Proportional to 1,027,487,390.76, 1,417,933,515.78 and 557,588,716.20

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Solution

The fourth proportional to 1,027,487,390.76, 1,417,933,515.78 and 557,588,716.20 is: 769,472,925.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027,487,390.76 : 1,417,933,515.78 = 557,588,716.20 : x
  2. Step 2: Convert to fraction form
    1,027,487,390.76/1,417,933,515.78 = 557,588,716.20/x
  3. Step 3: Cross multiply
    1,027,487,390.76x = 1,417,933,515.78 × 557,588,716.20
  4. Step 4: Simplify right side
    1,027,487,390.76x = 790,623,728,720,722,688
  5. Step 5: Solve for x
    x = 790,623,728,720,722,688/1,027,487,390.76
  6. Step 6: Final answer
    x = 769,472,925.73

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Half scale
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Double scale
Find fourth proportional to 1,027,487,391.76, 1,417,933,517.16 and 557,588,717.20
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.