Home / 817,305.66-1,127,415.51-490,531.41

Finding the Fourth Proportional to 817,305.66, 1,127,415.51 and 490,531.41

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Solution

The fourth proportional to 817,305.66, 1,127,415.51 and 490,531.41 is: 676,653.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,305.66 : 1,127,415.51 = 490,531.41 : x
  2. Step 2: Convert to fraction form
    817,305.66/1,127,415.51 = 490,531.41/x
  3. Step 3: Cross multiply
    817,305.66x = 1,127,415.51 × 490,531.41
  4. Step 4: Simplify right side
    817,305.66x = 553,032,719,776.17
  5. Step 5: Solve for x
    x = 553,032,719,776.17/817,305.66
  6. Step 6: Final answer
    x = 676,653.48

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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.