Home / 715,086.73-986,826.65-392,796.84

Finding the Fourth Proportional to 715,086.73, 986,826.65 and 392,796.84

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Solution

The fourth proportional to 715,086.73, 986,826.65 and 392,796.84 is: 542,063.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,086.73 : 986,826.65 = 392,796.84 : x
  2. Step 2: Convert to fraction form
    715,086.73/986,826.65 = 392,796.84/x
  3. Step 3: Cross multiply
    715,086.73x = 986,826.65 × 392,796.84
  4. Step 4: Simplify right side
    715,086.73x = 387,622,391,484.40
  5. Step 5: Solve for x
    x = 387,622,391,484.40/715,086.73
  6. Step 6: Final answer
    x = 542,063.47

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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.