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Finding the Fourth Proportional to 332,318.10, 498,477.15 and 306,657.30

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Solution

The fourth proportional to 332,318.10, 498,477.15 and 306,657.30 is: 459,985.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,318.10 : 498,477.15 = 306,657.30 : x
  2. Step 2: Convert to fraction form
    332,318.10/498,477.15 = 306,657.30/x
  3. Step 3: Cross multiply
    332,318.10x = 498,477.15 × 306,657.30
  4. Step 4: Simplify right side
    332,318.10x = 152,861,656,930.70
  5. Step 5: Solve for x
    x = 152,861,656,930.70/332,318.10
  6. Step 6: Final answer
    x = 459,985.95

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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.