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Finding the Fourth Proportional to 527,113.64, 790,670.47 and 127,754.42

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Solution

The fourth proportional to 527,113.64, 790,670.47 and 127,754.42 is: 191,631.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,113.64 : 790,670.47 = 127,754.42 : x
  2. Step 2: Convert to fraction form
    527,113.64/790,670.47 = 127,754.42/x
  3. Step 3: Cross multiply
    527,113.64x = 790,670.47 × 127,754.42
  4. Step 4: Simplify right side
    527,113.64x = 101,011,647,305.98
  5. Step 5: Solve for x
    x = 101,011,647,305.98/527,113.64
  6. Step 6: Final answer
    x = 191,631.63

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.