Home / 781,495.12-1,077,953.16-494,716.24

Finding the Fourth Proportional to 781,495.12, 1,077,953.16 and 494,716.24

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Solution

The fourth proportional to 781,495.12, 1,077,953.16 and 494,716.24 is: 682,385.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,495.12 : 1,077,953.16 = 494,716.24 : x
  2. Step 2: Convert to fraction form
    781,495.12/1,077,953.16 = 494,716.24/x
  3. Step 3: Cross multiply
    781,495.12x = 1,077,953.16 × 494,716.24
  4. Step 4: Simplify right side
    781,495.12x = 533,280,934,211.32
  5. Step 5: Solve for x
    x = 533,280,934,211.32/781,495.12
  6. Step 6: Final answer
    x = 682,385.49

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Double scale
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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.