Home / 714,512.03-986,022.72-392,227.61

Finding the Fourth Proportional to 714,512.03, 986,022.72 and 392,227.61

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Solution

The fourth proportional to 714,512.03, 986,022.72 and 392,227.61 is: 541,271.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,512.03 : 986,022.72 = 392,227.61 : x
  2. Step 2: Convert to fraction form
    714,512.03/986,022.72 = 392,227.61/x
  3. Step 3: Cross multiply
    714,512.03x = 986,022.72 × 392,227.61
  4. Step 4: Simplify right side
    714,512.03x = 386,745,334,871.30
  5. Step 5: Solve for x
    x = 386,745,334,871.30/714,512.03
  6. Step 6: Final answer
    x = 541,271.97

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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.