Home / 715,076.04-986,810.81-392,793.33

Finding the Fourth Proportional to 715,076.04, 986,810.81 and 392,793.33

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Solution

The fourth proportional to 715,076.04, 986,810.81 and 392,793.33 is: 542,058.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,076.04 : 986,810.81 = 392,793.33 : x
  2. Step 2: Convert to fraction form
    715,076.04/986,810.81 = 392,793.33/x
  3. Step 3: Cross multiply
    715,076.04x = 986,810.81 × 392,793.33
  4. Step 4: Simplify right side
    715,076.04x = 387,612,704,139.90
  5. Step 5: Solve for x
    x = 387,612,704,139.90/715,076.04
  6. Step 6: Final answer
    x = 542,058.02

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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.