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Finding the Fourth Proportional to 527,601.10, 728,126.46 and 298,179.59

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Solution

The fourth proportional to 527,601.10, 728,126.46 and 298,179.59 is: 411,508.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,601.10 : 728,126.46 = 298,179.59 : x
  2. Step 2: Convert to fraction form
    527,601.10/728,126.46 = 298,179.59/x
  3. Step 3: Cross multiply
    527,601.10x = 728,126.46 × 298,179.59
  4. Step 4: Simplify right side
    527,601.10x = 217,112,444,179.42
  5. Step 5: Solve for x
    x = 217,112,444,179.42/527,601.10
  6. Step 6: Final answer
    x = 411,508.71

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Double scale
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Similar ratio
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1.5x scale

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.