Home / 928,760.67-1,281,615.03-515,310.75

Finding the Fourth Proportional to 928,760.67, 1,281,615.03 and 515,310.75

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Solution

The fourth proportional to 928,760.67, 1,281,615.03 and 515,310.75 is: 711,087.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,760.67 : 1,281,615.03 = 515,310.75 : x
  2. Step 2: Convert to fraction form
    928,760.67/1,281,615.03 = 515,310.75/x
  3. Step 3: Cross multiply
    928,760.67x = 1,281,615.03 × 515,310.75
  4. Step 4: Simplify right side
    928,760.67x = 660,430,002,320.57
  5. Step 5: Solve for x
    x = 660,430,002,320.57/928,760.67
  6. Step 6: Final answer
    x = 711,087.39

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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.