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Finding the Fourth Proportional to 423,697.88, 584,560.80 and 239,911.32

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Solution

The fourth proportional to 423,697.88, 584,560.80 and 239,911.32 is: 330,997.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,697.88 : 584,560.80 = 239,911.32 : x
  2. Step 2: Convert to fraction form
    423,697.88/584,560.80 = 239,911.32/x
  3. Step 3: Cross multiply
    423,697.88x = 584,560.80 × 239,911.32
  4. Step 4: Simplify right side
    423,697.88x = 140,242,754,244.31
  5. Step 5: Solve for x
    x = 140,242,754,244.31/423,697.88
  6. Step 6: Final answer
    x = 330,997.07

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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.