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Finding the Fourth Proportional to 483,813.80, 725,720.70 and 247,077.80

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Solution

The fourth proportional to 483,813.80, 725,720.70 and 247,077.80 is: 370,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,813.80 : 725,720.70 = 247,077.80 : x
  2. Step 2: Convert to fraction form
    483,813.80/725,720.70 = 247,077.80/x
  3. Step 3: Cross multiply
    483,813.80x = 725,720.70 × 247,077.80
  4. Step 4: Simplify right side
    483,813.80x = 179,309,473,970.46
  5. Step 5: Solve for x
    x = 179,309,473,970.46/483,813.80
  6. Step 6: Final answer
    x = 370,616.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.