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Finding the Fourth Proportional to 514,559.70, 771,839.55 and 159,609.60

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Solution

The fourth proportional to 514,559.70, 771,839.55 and 159,609.60 is: 239,414.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,559.70 : 771,839.55 = 159,609.60 : x
  2. Step 2: Convert to fraction form
    514,559.70/771,839.55 = 159,609.60/x
  3. Step 3: Cross multiply
    514,559.70x = 771,839.55 × 159,609.60
  4. Step 4: Simplify right side
    514,559.70x = 123,193,001,839.68
  5. Step 5: Solve for x
    x = 123,193,001,839.68/514,559.70
  6. Step 6: Final answer
    x = 239,414.40

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Similar ratio
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1.5x scale

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.