Home / 861,580.34-1,189,306.25-677,338.28

Finding the Fourth Proportional to 861,580.34, 1,189,306.25 and 677,338.28

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Solution

The fourth proportional to 861,580.34, 1,189,306.25 and 677,338.28 is: 934,982.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,580.34 : 1,189,306.25 = 677,338.28 : x
  2. Step 2: Convert to fraction form
    861,580.34/1,189,306.25 = 677,338.28/x
  3. Step 3: Cross multiply
    861,580.34x = 1,189,306.25 × 677,338.28
  4. Step 4: Simplify right side
    861,580.34x = 805,562,649,354.82
  5. Step 5: Solve for x
    x = 805,562,649,354.82/861,580.34
  6. Step 6: Final answer
    x = 934,982.62

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1.5x scale

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.