Home / 868,147.20-1,299,686.40-619,315.20

Finding the Fourth Proportional to 868,147.20, 1,299,686.40 and 619,315.20

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Solution

The fourth proportional to 868,147.20, 1,299,686.40 and 619,315.20 is: 927,164.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,147.20 : 1,299,686.40 = 619,315.20 : x
  2. Step 2: Convert to fraction form
    868,147.20/1,299,686.40 = 619,315.20/x
  3. Step 3: Cross multiply
    868,147.20x = 1,299,686.40 × 619,315.20
  4. Step 4: Simplify right side
    868,147.20x = 804,915,542,753.28
  5. Step 5: Solve for x
    x = 804,915,542,753.28/868,147.20
  6. Step 6: Final answer
    x = 927,164.82

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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.