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Finding the Fourth Proportional to 861,547.97, 1,292,691 and 356,476.11

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Solution

The fourth proportional to 861,547.97, 1,292,691 and 356,476.11 is: 534,866.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,547.97 : 1,292,691 = 356,476.11 : x
  2. Step 2: Convert to fraction form
    861,547.97/1,292,691 = 356,476.11/x
  3. Step 3: Cross multiply
    861,547.97x = 1,292,691 × 356,476.11
  4. Step 4: Simplify right side
    861,547.97x = 460,813,459,112.01
  5. Step 5: Solve for x
    x = 460,813,459,112.01/861,547.97
  6. Step 6: Final answer
    x = 534,866.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.