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Finding the Fourth Proportional to 621,098.62, 931,648.14 and 194,667.54

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Solution

The fourth proportional to 621,098.62, 931,648.14 and 194,667.54 is: 292,001.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,098.62 : 931,648.14 = 194,667.54 : x
  2. Step 2: Convert to fraction form
    621,098.62/931,648.14 = 194,667.54/x
  3. Step 3: Cross multiply
    621,098.62x = 931,648.14 × 194,667.54
  4. Step 4: Simplify right side
    621,098.62x = 181,361,651,559.38
  5. Step 5: Solve for x
    x = 181,361,651,559.38/621,098.62
  6. Step 6: Final answer
    x = 292,001.38

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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.