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Finding the Fourth Proportional to 573,532.65, 791,472.47 and 318,868.65

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Solution

The fourth proportional to 573,532.65, 791,472.47 and 318,868.65 is: 440,037.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,532.65 : 791,472.47 = 318,868.65 : x
  2. Step 2: Convert to fraction form
    573,532.65/791,472.47 = 318,868.65/x
  3. Step 3: Cross multiply
    573,532.65x = 791,472.47 × 318,868.65
  4. Step 4: Simplify right side
    573,532.65x = 252,375,756,426.72
  5. Step 5: Solve for x
    x = 252,375,756,426.72/573,532.65
  6. Step 6: Final answer
    x = 440,037.30

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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.