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Finding the Fourth Proportional to 324,969.68, 448,520.15 and 217,726.70

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Solution

The fourth proportional to 324,969.68, 448,520.15 and 217,726.70 is: 300,504.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,969.68 : 448,520.15 = 217,726.70 : x
  2. Step 2: Convert to fraction form
    324,969.68/448,520.15 = 217,726.70/x
  3. Step 3: Cross multiply
    324,969.68x = 448,520.15 × 217,726.70
  4. Step 4: Simplify right side
    324,969.68x = 97,654,812,143.01
  5. Step 5: Solve for x
    x = 97,654,812,143.01/324,969.68
  6. Step 6: Final answer
    x = 300,504.38

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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.