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Finding the Fourth Proportional to 573,549.92, 791,494.09 and 318,898.88

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Solution

The fourth proportional to 573,549.92, 791,494.09 and 318,898.88 is: 440,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,549.92 : 791,494.09 = 318,898.88 : x
  2. Step 2: Convert to fraction form
    573,549.92/791,494.09 = 318,898.88/x
  3. Step 3: Cross multiply
    573,549.92x = 791,494.09 × 318,898.88
  4. Step 4: Simplify right side
    573,549.92x = 252,406,574,072.90
  5. Step 5: Solve for x
    x = 252,406,574,072.90/573,549.92
  6. Step 6: Final answer
    x = 440,077.78

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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.