Home / 861,510.22-1,292,264.97-230,407.63

Finding the Fourth Proportional to 861,510.22, 1,292,264.97 and 230,407.63

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Solution

The fourth proportional to 861,510.22, 1,292,264.97 and 230,407.63 is: 345,611.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,510.22 : 1,292,264.97 = 230,407.63 : x
  2. Step 2: Convert to fraction form
    861,510.22/1,292,264.97 = 230,407.63/x
  3. Step 3: Cross multiply
    861,510.22x = 1,292,264.97 × 230,407.63
  4. Step 4: Simplify right side
    861,510.22x = 297,747,709,069.72
  5. Step 5: Solve for x
    x = 297,747,709,069.72/861,510.22
  6. Step 6: Final answer
    x = 345,611.35

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Double scale
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Similar ratio
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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.