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Finding the Fourth Proportional to 439,666.20, 659,499.30 and 297,948.60

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Solution

The fourth proportional to 439,666.20, 659,499.30 and 297,948.60 is: 446,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,666.20 : 659,499.30 = 297,948.60 : x
  2. Step 2: Convert to fraction form
    439,666.20/659,499.30 = 297,948.60/x
  3. Step 3: Cross multiply
    439,666.20x = 659,499.30 × 297,948.60
  4. Step 4: Simplify right side
    439,666.20x = 196,496,893,135.98
  5. Step 5: Solve for x
    x = 196,496,893,135.98/439,666.20
  6. Step 6: Final answer
    x = 446,922.90

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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.