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Finding the Fourth Proportional to 517,252.20, 775,879.20 and 162,293.46

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Solution

The fourth proportional to 517,252.20, 775,879.20 and 162,293.46 is: 243,440.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,252.20 : 775,879.20 = 162,293.46 : x
  2. Step 2: Convert to fraction form
    517,252.20/775,879.20 = 162,293.46/x
  3. Step 3: Cross multiply
    517,252.20x = 775,879.20 × 162,293.46
  4. Step 4: Simplify right side
    517,252.20x = 125,920,119,910.03
  5. Step 5: Solve for x
    x = 125,920,119,910.03/517,252.20
  6. Step 6: Final answer
    x = 243,440.47

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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.