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Finding the Fourth Proportional to 313,463.88, 432,606.96 and 177,521.85

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Solution

The fourth proportional to 313,463.88, 432,606.96 and 177,521.85 is: 244,995.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,463.88 : 432,606.96 = 177,521.85 : x
  2. Step 2: Convert to fraction form
    313,463.88/432,606.96 = 177,521.85/x
  3. Step 3: Cross multiply
    313,463.88x = 432,606.96 × 177,521.85
  4. Step 4: Simplify right side
    313,463.88x = 76,797,187,862.08
  5. Step 5: Solve for x
    x = 76,797,187,862.08/313,463.88
  6. Step 6: Final answer
    x = 244,995.33

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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.