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Finding the Fourth Proportional to 448,221.66, 618,545.88 and 247,017.66

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Solution

The fourth proportional to 448,221.66, 618,545.88 and 247,017.66 is: 340,884.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,221.66 : 618,545.88 = 247,017.66 : x
  2. Step 2: Convert to fraction form
    448,221.66/618,545.88 = 247,017.66/x
  3. Step 3: Cross multiply
    448,221.66x = 618,545.88 × 247,017.66
  4. Step 4: Simplify right side
    448,221.66x = 152,791,755,880.24
  5. Step 5: Solve for x
    x = 152,791,755,880.24/448,221.66
  6. Step 6: Final answer
    x = 340,884.36

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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.