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Finding the Fourth Proportional to 527,148.56, 790,724.44 and 127,787.76

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Solution

The fourth proportional to 527,148.56, 790,724.44 and 127,787.76 is: 191,682.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,148.56 : 790,724.44 = 127,787.76 : x
  2. Step 2: Convert to fraction form
    527,148.56/790,724.44 = 127,787.76/x
  3. Step 3: Cross multiply
    527,148.56x = 790,724.44 × 127,787.76
  4. Step 4: Simplify right side
    527,148.56x = 101,044,904,964.85
  5. Step 5: Solve for x
    x = 101,044,904,964.85/527,148.56
  6. Step 6: Final answer
    x = 191,682.03

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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.