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Finding the Fourth Proportional to 447,767.20, 672,169.20 and 270,474.40

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Solution

The fourth proportional to 447,767.20, 672,169.20 and 270,474.40 is: 406,024.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,767.20 : 672,169.20 = 270,474.40 : x
  2. Step 2: Convert to fraction form
    447,767.20/672,169.20 = 270,474.40/x
  3. Step 3: Cross multiply
    447,767.20x = 672,169.20 × 270,474.40
  4. Step 4: Simplify right side
    447,767.20x = 181,804,561,068.48
  5. Step 5: Solve for x
    x = 181,804,561,068.48/447,767.20
  6. Step 6: Final answer
    x = 406,024.74

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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.