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Finding the Fourth Proportional to 664,397.20, 996,595.80 and 464,942.80

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Solution

The fourth proportional to 664,397.20, 996,595.80 and 464,942.80 is: 697,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,397.20 : 996,595.80 = 464,942.80 : x
  2. Step 2: Convert to fraction form
    664,397.20/996,595.80 = 464,942.80/x
  3. Step 3: Cross multiply
    664,397.20x = 996,595.80 × 464,942.80
  4. Step 4: Simplify right side
    664,397.20x = 463,360,041,720.24
  5. Step 5: Solve for x
    x = 463,360,041,720.24/664,397.20
  6. Step 6: Final answer
    x = 697,414.20

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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.