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Finding the Fourth Proportional to 318,456.74, 439,461.24 and 175,216.88

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Solution

The fourth proportional to 318,456.74, 439,461.24 and 175,216.88 is: 241,794.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,456.74 : 439,461.24 = 175,216.88 : x
  2. Step 2: Convert to fraction form
    318,456.74/439,461.24 = 175,216.88/x
  3. Step 3: Cross multiply
    318,456.74x = 439,461.24 × 175,216.88
  4. Step 4: Simplify right side
    318,456.74x = 77,001,027,353.73
  5. Step 5: Solve for x
    x = 77,001,027,353.73/318,456.74
  6. Step 6: Final answer
    x = 241,794.31

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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.