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Finding the Fourth Proportional to 459,007.90, 688,511.85 and 332,380.60

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Solution

The fourth proportional to 459,007.90, 688,511.85 and 332,380.60 is: 498,570.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,007.90 : 688,511.85 = 332,380.60 : x
  2. Step 2: Convert to fraction form
    459,007.90/688,511.85 = 332,380.60/x
  3. Step 3: Cross multiply
    459,007.90x = 688,511.85 × 332,380.60
  4. Step 4: Simplify right side
    459,007.90x = 228,847,981,810.11
  5. Step 5: Solve for x
    x = 228,847,981,810.11/459,007.90
  6. Step 6: Final answer
    x = 498,570.90

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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.