Home / 861,581.60-1,189,307.97-677,339.54

Finding the Fourth Proportional to 861,581.60, 1,189,307.97 and 677,339.54

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Solution

The fourth proportional to 861,581.60, 1,189,307.97 and 677,339.54 is: 934,984.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,581.60 : 1,189,307.97 = 677,339.54 : x
  2. Step 2: Convert to fraction form
    861,581.60/1,189,307.97 = 677,339.54/x
  3. Step 3: Cross multiply
    861,581.60x = 1,189,307.97 × 677,339.54
  4. Step 4: Simplify right side
    861,581.60x = 805,565,307,371.59
  5. Step 5: Solve for x
    x = 805,565,307,371.59/861,581.60
  6. Step 6: Final answer
    x = 934,984.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.