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Finding the Fourth Proportional to 626,565.87, 865,052.37 and 430,669.60

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Solution

The fourth proportional to 626,565.87, 865,052.37 and 430,669.60 is: 594,593.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,565.87 : 865,052.37 = 430,669.60 : x
  2. Step 2: Convert to fraction form
    626,565.87/865,052.37 = 430,669.60/x
  3. Step 3: Cross multiply
    626,565.87x = 865,052.37 × 430,669.60
  4. Step 4: Simplify right side
    626,565.87x = 372,551,758,166.95
  5. Step 5: Solve for x
    x = 372,551,758,166.95/626,565.87
  6. Step 6: Final answer
    x = 594,593.12

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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.