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Finding the Fourth Proportional to 484,597.32, 668,729.42 and 269,731.86

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Solution

The fourth proportional to 484,597.32, 668,729.42 and 269,731.86 is: 372,221.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,597.32 : 668,729.42 = 269,731.86 : x
  2. Step 2: Convert to fraction form
    484,597.32/668,729.42 = 269,731.86/x
  3. Step 3: Cross multiply
    484,597.32x = 668,729.42 × 269,731.86
  4. Step 4: Simplify right side
    484,597.32x = 180,377,628,944.66
  5. Step 5: Solve for x
    x = 180,377,628,944.66/484,597.32
  6. Step 6: Final answer
    x = 372,221.68

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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.