Home / 1,242,169.89-1,863,648.50-443,433.75

Finding the Fourth Proportional to 1,242,169.89, 1,863,648.50 and 443,433.75

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Solution

The fourth proportional to 1,242,169.89, 1,863,648.50 and 443,433.75 is: 665,291.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,169.89 : 1,863,648.50 = 443,433.75 : x
  2. Step 2: Convert to fraction form
    1,242,169.89/1,863,648.50 = 443,433.75/x
  3. Step 3: Cross multiply
    1,242,169.89x = 1,863,648.50 × 443,433.75
  4. Step 4: Simplify right side
    1,242,169.89x = 826,404,640,819.71
  5. Step 5: Solve for x
    x = 826,404,640,819.71/1,242,169.89
  6. Step 6: Final answer
    x = 665,291.15

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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.