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Finding the Fourth Proportional to 365,512.74, 547,417.50 and 355,423.38

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Solution

The fourth proportional to 365,512.74, 547,417.50 and 355,423.38 is: 532,306.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,512.74 : 547,417.50 = 355,423.38 : x
  2. Step 2: Convert to fraction form
    365,512.74/547,417.50 = 355,423.38/x
  3. Step 3: Cross multiply
    365,512.74x = 547,417.50 × 355,423.38
  4. Step 4: Simplify right side
    365,512.74x = 194,564,978,121.15
  5. Step 5: Solve for x
    x = 194,564,978,121.15/365,512.74
  6. Step 6: Final answer
    x = 532,306.97

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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.