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Finding the Fourth Proportional to 447,796.20, 672,212.70 and 270,503.40

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Solution

The fourth proportional to 447,796.20, 672,212.70 and 270,503.40 is: 406,068.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,796.20 : 672,212.70 = 270,503.40 : x
  2. Step 2: Convert to fraction form
    447,796.20/672,212.70 = 270,503.40/x
  3. Step 3: Cross multiply
    447,796.20x = 672,212.70 × 270,503.40
  4. Step 4: Simplify right side
    447,796.20x = 181,835,820,873.18
  5. Step 5: Solve for x
    x = 181,835,820,873.18/447,796.20
  6. Step 6: Final answer
    x = 406,068.25

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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.