Home / 861,141.24-1,291,710.56-292,581.36

Finding the Fourth Proportional to 861,141.24, 1,291,710.56 and 292,581.36

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Solution

The fourth proportional to 861,141.24, 1,291,710.56 and 292,581.36 is: 438,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,141.24 : 1,291,710.56 = 292,581.36 : x
  2. Step 2: Convert to fraction form
    861,141.24/1,291,710.56 = 292,581.36/x
  3. Step 3: Cross multiply
    861,141.24x = 1,291,710.56 × 292,581.36
  4. Step 4: Simplify right side
    861,141.24x = 377,930,430,908.26
  5. Step 5: Solve for x
    x = 377,930,430,908.26/861,141.24
  6. Step 6: Final answer
    x = 438,871.60

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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.