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Finding the Fourth Proportional to 475,885.43, 656,740.28 and 261,034.55

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Solution

The fourth proportional to 475,885.43, 656,740.28 and 261,034.55 is: 360,237.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,885.43 : 656,740.28 = 261,034.55 : x
  2. Step 2: Convert to fraction form
    475,885.43/656,740.28 = 261,034.55/x
  3. Step 3: Cross multiply
    475,885.43x = 656,740.28 × 261,034.55
  4. Step 4: Simplify right side
    475,885.43x = 171,431,903,456.67
  5. Step 5: Solve for x
    x = 171,431,903,456.67/475,885.43
  6. Step 6: Final answer
    x = 360,237.76

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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.