Home / 861,400.92-1,292,137.01-254,189.24

Finding the Fourth Proportional to 861,400.92, 1,292,137.01 and 254,189.24

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Solution

The fourth proportional to 861,400.92, 1,292,137.01 and 254,189.24 is: 381,294.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,400.92 : 1,292,137.01 = 254,189.24 : x
  2. Step 2: Convert to fraction form
    861,400.92/1,292,137.01 = 254,189.24/x
  3. Step 3: Cross multiply
    861,400.92x = 1,292,137.01 × 254,189.24
  4. Step 4: Simplify right side
    861,400.92x = 328,447,324,547.77
  5. Step 5: Solve for x
    x = 328,447,324,547.77/861,400.92
  6. Step 6: Final answer
    x = 381,294.37

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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.