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Finding the Fourth Proportional to 364,552.40, 547,865.40 and 318,933.20

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Solution

The fourth proportional to 364,552.40, 547,865.40 and 318,933.20 is: 479,306.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,552.40 : 547,865.40 = 318,933.20 : x
  2. Step 2: Convert to fraction form
    364,552.40/547,865.40 = 318,933.20/x
  3. Step 3: Cross multiply
    364,552.40x = 547,865.40 × 318,933.20
  4. Step 4: Simplify right side
    364,552.40x = 174,732,465,191.28
  5. Step 5: Solve for x
    x = 174,732,465,191.28/364,552.40
  6. Step 6: Final answer
    x = 479,306.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.