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Finding the Fourth Proportional to 474,062.41, 710,704.05 and 221,217.86

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Solution

The fourth proportional to 474,062.41, 710,704.05 and 221,217.86 is: 331,645.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,062.41 : 710,704.05 = 221,217.86 : x
  2. Step 2: Convert to fraction form
    474,062.41/710,704.05 = 221,217.86/x
  3. Step 3: Cross multiply
    474,062.41x = 710,704.05 × 221,217.86
  4. Step 4: Simplify right side
    474,062.41x = 157,220,429,034.33
  5. Step 5: Solve for x
    x = 157,220,429,034.33/474,062.41
  6. Step 6: Final answer
    x = 331,645.01

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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.