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Finding the Fourth Proportional to 566,641.87, 781,839.20 and 475,131.31

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Solution

The fourth proportional to 566,641.87, 781,839.20 and 475,131.31 is: 655,575.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,641.87 : 781,839.20 = 475,131.31 : x
  2. Step 2: Convert to fraction form
    566,641.87/781,839.20 = 475,131.31/x
  3. Step 3: Cross multiply
    566,641.87x = 781,839.20 × 475,131.31
  4. Step 4: Simplify right side
    566,641.87x = 371,476,282,538.58
  5. Step 5: Solve for x
    x = 371,476,282,538.58/566,641.87
  6. Step 6: Final answer
    x = 655,575.07

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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.