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Finding the Fourth Proportional to 527,115.52, 790,674.90 and 127,754.74

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Solution

The fourth proportional to 527,115.52, 790,674.90 and 127,754.74 is: 191,632.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,115.52 : 790,674.90 = 127,754.74 : x
  2. Step 2: Convert to fraction form
    527,115.52/790,674.90 = 127,754.74/x
  3. Step 3: Cross multiply
    527,115.52x = 790,674.90 × 127,754.74
  4. Step 4: Simplify right side
    527,115.52x = 101,012,466,274.03
  5. Step 5: Solve for x
    x = 101,012,466,274.03/527,115.52
  6. Step 6: Final answer
    x = 191,632.50

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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.