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Finding the Fourth Proportional to 573,740.01, 791,740.17 and 319,107.60

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Solution

The fourth proportional to 573,740.01, 791,740.17 and 319,107.60 is: 440,356.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,740.01 : 791,740.17 = 319,107.60 : x
  2. Step 2: Convert to fraction form
    573,740.01/791,740.17 = 319,107.60/x
  3. Step 3: Cross multiply
    573,740.01x = 791,740.17 × 319,107.60
  4. Step 4: Simplify right side
    573,740.01x = 252,650,305,472.29
  5. Step 5: Solve for x
    x = 252,650,305,472.29/573,740.01
  6. Step 6: Final answer
    x = 440,356.78

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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.