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Finding the Fourth Proportional to 573,528.66, 791,489.87 and 315,425.56

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Solution

The fourth proportional to 573,528.66, 791,489.87 and 315,425.56 is: 435,298.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,528.66 : 791,489.87 = 315,425.56 : x
  2. Step 2: Convert to fraction form
    573,528.66/791,489.87 = 315,425.56/x
  3. Step 3: Cross multiply
    573,528.66x = 791,489.87 × 315,425.56
  4. Step 4: Simplify right side
    573,528.66x = 249,656,134,288.92
  5. Step 5: Solve for x
    x = 249,656,134,288.92/573,528.66
  6. Step 6: Final answer
    x = 435,298.45

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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.