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Finding the Fourth Proportional to 516,951.46, 775,427.47 and 161,993.26

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Solution

The fourth proportional to 516,951.46, 775,427.47 and 161,993.26 is: 242,989.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,951.46 : 775,427.47 = 161,993.26 : x
  2. Step 2: Convert to fraction form
    516,951.46/775,427.47 = 161,993.26/x
  3. Step 3: Cross multiply
    516,951.46x = 775,427.47 × 161,993.26
  4. Step 4: Simplify right side
    516,951.46x = 125,614,023,758.85
  5. Step 5: Solve for x
    x = 125,614,023,758.85/516,951.46
  6. Step 6: Final answer
    x = 242,989.98

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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.