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Finding the Fourth Proportional to 441,688.80, 663,224.40 and 255,064.80

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Solution

The fourth proportional to 441,688.80, 663,224.40 and 255,064.80 is: 382,996.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,688.80 : 663,224.40 = 255,064.80 : x
  2. Step 2: Convert to fraction form
    441,688.80/663,224.40 = 255,064.80/x
  3. Step 3: Cross multiply
    441,688.80x = 663,224.40 × 255,064.80
  4. Step 4: Simplify right side
    441,688.80x = 169,165,198,941.12
  5. Step 5: Solve for x
    x = 169,165,198,941.12/441,688.80
  6. Step 6: Final answer
    x = 382,996.35

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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.