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Finding the Fourth Proportional to 332,209.70, 498,314.55 and 309,902.30

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Solution

The fourth proportional to 332,209.70, 498,314.55 and 309,902.30 is: 464,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,209.70 : 498,314.55 = 309,902.30 : x
  2. Step 2: Convert to fraction form
    332,209.70/498,314.55 = 309,902.30/x
  3. Step 3: Cross multiply
    332,209.70x = 498,314.55 × 309,902.30
  4. Step 4: Simplify right side
    332,209.70x = 154,428,825,168.47
  5. Step 5: Solve for x
    x = 154,428,825,168.47/332,209.70
  6. Step 6: Final answer
    x = 464,853.45

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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.