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Finding the Fourth Proportional to 664,344.80, 996,322.80 and 237,831.20

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Solution

The fourth proportional to 664,344.80, 996,322.80 and 237,831.20 is: 356,677.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,344.80 : 996,322.80 = 237,831.20 : x
  2. Step 2: Convert to fraction form
    664,344.80/996,322.80 = 237,831.20/x
  3. Step 3: Cross multiply
    664,344.80x = 996,322.80 × 237,831.20
  4. Step 4: Simplify right side
    664,344.80x = 236,956,647,111.36
  5. Step 5: Solve for x
    x = 236,956,647,111.36/664,344.80
  6. Step 6: Final answer
    x = 356,677.21

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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.