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Finding the Fourth Proportional to 386,115.31, 532,817.35 and 224,996.59

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Solution

The fourth proportional to 386,115.31, 532,817.35 and 224,996.59 is: 310,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,115.31 : 532,817.35 = 224,996.59 : x
  2. Step 2: Convert to fraction form
    386,115.31/532,817.35 = 224,996.59/x
  3. Step 3: Cross multiply
    386,115.31x = 532,817.35 × 224,996.59
  4. Step 4: Simplify right side
    386,115.31x = 119,882,086,842.84
  5. Step 5: Solve for x
    x = 119,882,086,842.84/386,115.31
  6. Step 6: Final answer
    x = 310,482.60

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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.