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Finding the Fourth Proportional to 621,203.44, 931,778.47 and 194,729.71

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Solution

The fourth proportional to 621,203.44, 931,778.47 and 194,729.71 is: 292,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,203.44 : 931,778.47 = 194,729.71 : x
  2. Step 2: Convert to fraction form
    621,203.44/931,778.47 = 194,729.71/x
  3. Step 3: Cross multiply
    621,203.44x = 931,778.47 × 194,729.71
  4. Step 4: Simplify right side
    621,203.44x = 181,444,951,247.34
  5. Step 5: Solve for x
    x = 181,444,951,247.34/621,203.44
  6. Step 6: Final answer
    x = 292,086.20

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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.