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Finding the Fourth Proportional to 662,167.20, 993,250.80 and 346,720.80

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Solution

The fourth proportional to 662,167.20, 993,250.80 and 346,720.80 is: 520,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,167.20 : 993,250.80 = 346,720.80 : x
  2. Step 2: Convert to fraction form
    662,167.20/993,250.80 = 346,720.80/x
  3. Step 3: Cross multiply
    662,167.20x = 993,250.80 × 346,720.80
  4. Step 4: Simplify right side
    662,167.20x = 344,380,711,976.64
  5. Step 5: Solve for x
    x = 344,380,711,976.64/662,167.20
  6. Step 6: Final answer
    x = 520,081.20

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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.