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Finding the Fourth Proportional to 527,112.64, 790,668.97 and 127,753.42

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Solution

The fourth proportional to 527,112.64, 790,668.97 and 127,753.42 is: 191,630.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,112.64 : 790,668.97 = 127,753.42 : x
  2. Step 2: Convert to fraction form
    527,112.64/790,668.97 = 127,753.42/x
  3. Step 3: Cross multiply
    527,112.64x = 790,668.97 × 127,753.42
  4. Step 4: Simplify right side
    527,112.64x = 101,010,665,005.38
  5. Step 5: Solve for x
    x = 101,010,665,005.38/527,112.64
  6. Step 6: Final answer
    x = 191,630.13

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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.