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Finding the Fourth Proportional to 467,387.20, 699,698.40 and 440,046.40

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Solution

The fourth proportional to 467,387.20, 699,698.40 and 440,046.40 is: 658,768.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,387.20 : 699,698.40 = 440,046.40 : x
  2. Step 2: Convert to fraction form
    467,387.20/699,698.40 = 440,046.40/x
  3. Step 3: Cross multiply
    467,387.20x = 699,698.40 × 440,046.40
  4. Step 4: Simplify right side
    467,387.20x = 307,899,762,005.76
  5. Step 5: Solve for x
    x = 307,899,762,005.76/467,387.20
  6. Step 6: Final answer
    x = 658,768.07

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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.