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Finding the Fourth Proportional to 447,748.40, 672,400.20 and 237,796.40

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Solution

The fourth proportional to 447,748.40, 672,400.20 and 237,796.40 is: 357,107.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,748.40 : 672,400.20 = 237,796.40 : x
  2. Step 2: Convert to fraction form
    447,748.40/672,400.20 = 237,796.40/x
  3. Step 3: Cross multiply
    447,748.40x = 672,400.20 × 237,796.40
  4. Step 4: Simplify right side
    447,748.40x = 159,894,346,919.28
  5. Step 5: Solve for x
    x = 159,894,346,919.28/447,748.40
  6. Step 6: Final answer
    x = 357,107.58

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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.