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Finding the Fourth Proportional to 664,418.80, 996,433.80 and 237,905.20

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Solution

The fourth proportional to 664,418.80, 996,433.80 and 237,905.20 is: 356,788.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,418.80 : 996,433.80 = 237,905.20 : x
  2. Step 2: Convert to fraction form
    664,418.80/996,433.80 = 237,905.20/x
  3. Step 3: Cross multiply
    664,418.80x = 996,433.80 × 237,905.20
  4. Step 4: Simplify right side
    664,418.80x = 237,056,782,475.76
  5. Step 5: Solve for x
    x = 237,056,782,475.76/664,418.80
  6. Step 6: Final answer
    x = 356,788.19

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1.5x scale

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.