Home / 861,189.60-1,291,635.36-262,005.60

Finding the Fourth Proportional to 861,189.60, 1,291,635.36 and 262,005.60

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Solution

The fourth proportional to 861,189.60, 1,291,635.36 and 262,005.60 is: 392,963.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,189.60 : 1,291,635.36 = 262,005.60 : x
  2. Step 2: Convert to fraction form
    861,189.60/1,291,635.36 = 262,005.60/x
  3. Step 3: Cross multiply
    861,189.60x = 1,291,635.36 × 262,005.60
  4. Step 4: Simplify right side
    861,189.60x = 338,415,697,478.02
  5. Step 5: Solve for x
    x = 338,415,697,478.02/861,189.60
  6. Step 6: Final answer
    x = 392,963.06

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1.5x scale

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.