Home / 861,656.40-1,291,966.20-441,752.40

Finding the Fourth Proportional to 861,656.40, 1,291,966.20 and 441,752.40

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Solution

The fourth proportional to 861,656.40, 1,291,966.20 and 441,752.40 is: 662,362.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,656.40 : 1,291,966.20 = 441,752.40 : x
  2. Step 2: Convert to fraction form
    861,656.40/1,291,966.20 = 441,752.40/x
  3. Step 3: Cross multiply
    861,656.40x = 1,291,966.20 × 441,752.40
  4. Step 4: Simplify right side
    861,656.40x = 570,729,169,568.88
  5. Step 5: Solve for x
    x = 570,729,169,568.88/861,656.40
  6. Step 6: Final answer
    x = 662,362.83

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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.