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Finding the Fourth Proportional to 302,456.97, 417,449.30 and 173,471.76

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Solution

The fourth proportional to 302,456.97, 417,449.30 and 173,471.76 is: 239,424.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,456.97 : 417,449.30 = 173,471.76 : x
  2. Step 2: Convert to fraction form
    302,456.97/417,449.30 = 173,471.76/x
  3. Step 3: Cross multiply
    302,456.97x = 417,449.30 × 173,471.76
  4. Step 4: Simplify right side
    302,456.97x = 72,415,663,914.41
  5. Step 5: Solve for x
    x = 72,415,663,914.41/302,456.97
  6. Step 6: Final answer
    x = 239,424.68

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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.