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Finding the Fourth Proportional to 448,209.92, 618,529.70 and 247,005.92

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Solution

The fourth proportional to 448,209.92, 618,529.70 and 247,005.92 is: 340,868.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,209.92 : 618,529.70 = 247,005.92 : x
  2. Step 2: Convert to fraction form
    448,209.92/618,529.70 = 247,005.92/x
  3. Step 3: Cross multiply
    448,209.92x = 618,529.70 × 247,005.92
  4. Step 4: Simplify right side
    448,209.92x = 152,780,499,759.66
  5. Step 5: Solve for x
    x = 152,780,499,759.66/448,209.92
  6. Step 6: Final answer
    x = 340,868.18

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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.