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Finding the Fourth Proportional to 566,435.29, 781,282.59 and 372,781.30

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Solution

The fourth proportional to 566,435.29, 781,282.59 and 372,781.30 is: 514,176.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,435.29 : 781,282.59 = 372,781.30 : x
  2. Step 2: Convert to fraction form
    566,435.29/781,282.59 = 372,781.30/x
  3. Step 3: Cross multiply
    566,435.29x = 781,282.59 × 372,781.30
  4. Step 4: Simplify right side
    566,435.29x = 291,247,539,567.57
  5. Step 5: Solve for x
    x = 291,247,539,567.57/566,435.29
  6. Step 6: Final answer
    x = 514,176.19

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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.