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Finding the Fourth Proportional to 440,612.52, 608,046.86 and 239,408.52

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Solution

The fourth proportional to 440,612.52, 608,046.86 and 239,408.52 is: 330,384.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,612.52 : 608,046.86 = 239,408.52 : x
  2. Step 2: Convert to fraction form
    440,612.52/608,046.86 = 239,408.52/x
  3. Step 3: Cross multiply
    440,612.52x = 608,046.86 × 239,408.52
  4. Step 4: Simplify right side
    440,612.52x = 145,571,598,843.25
  5. Step 5: Solve for x
    x = 145,571,598,843.25/440,612.52
  6. Step 6: Final answer
    x = 330,384.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.