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Finding the Fourth Proportional to 448,210.97, 618,531.15 and 247,006.97

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Solution

The fourth proportional to 448,210.97, 618,531.15 and 247,006.97 is: 340,869.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,210.97 : 618,531.15 = 247,006.97 : x
  2. Step 2: Convert to fraction form
    448,210.97/618,531.15 = 247,006.97/x
  3. Step 3: Cross multiply
    448,210.97x = 618,531.15 × 247,006.97
  4. Step 4: Simplify right side
    448,210.97x = 152,781,504,438.95
  5. Step 5: Solve for x
    x = 152,781,504,438.95/448,210.97
  6. Step 6: Final answer
    x = 340,869.62

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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.