Home / 861,127.40-1,291,230.30-361,927.40

Finding the Fourth Proportional to 861,127.40, 1,291,230.30 and 361,927.40

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Solution

The fourth proportional to 861,127.40, 1,291,230.30 and 361,927.40 is: 542,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,127.40 : 1,291,230.30 = 361,927.40 : x
  2. Step 2: Convert to fraction form
    861,127.40/1,291,230.30 = 361,927.40/x
  3. Step 3: Cross multiply
    861,127.40x = 1,291,230.30 × 361,927.40
  4. Step 4: Simplify right side
    861,127.40x = 467,331,625,280.22
  5. Step 5: Solve for x
    x = 467,331,625,280.22/861,127.40
  6. Step 6: Final answer
    x = 542,697.43

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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.