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Finding the Fourth Proportional to 332,129.70, 498,194.55 and 191,724.30

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Solution

The fourth proportional to 332,129.70, 498,194.55 and 191,724.30 is: 287,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,129.70 : 498,194.55 = 191,724.30 : x
  2. Step 2: Convert to fraction form
    332,129.70/498,194.55 = 191,724.30/x
  3. Step 3: Cross multiply
    332,129.70x = 498,194.55 × 191,724.30
  4. Step 4: Simplify right side
    332,129.70x = 95,516,001,362.57
  5. Step 5: Solve for x
    x = 95,516,001,362.57/332,129.70
  6. Step 6: Final answer
    x = 287,586.45

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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.