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Finding the Fourth Proportional to 573,743.53, 791,794.13 and 319,089.25

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Solution

The fourth proportional to 573,743.53, 791,794.13 and 319,089.25 is: 440,358.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,743.53 : 791,794.13 = 319,089.25 : x
  2. Step 2: Convert to fraction form
    573,743.53/791,794.13 = 319,089.25/x
  3. Step 3: Cross multiply
    573,743.53x = 791,794.13 × 319,089.25
  4. Step 4: Simplify right side
    573,743.53x = 252,652,995,096.10
  5. Step 5: Solve for x
    x = 252,652,995,096.10/573,743.53
  6. Step 6: Final answer
    x = 440,358.77

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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.