Home / 714,825.23-986,465.66-392,542.07

Finding the Fourth Proportional to 714,825.23, 986,465.66 and 392,542.07

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Solution

The fourth proportional to 714,825.23, 986,465.66 and 392,542.07 is: 541,711.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,825.23 : 986,465.66 = 392,542.07 : x
  2. Step 2: Convert to fraction form
    714,825.23/986,465.66 = 392,542.07/x
  3. Step 3: Cross multiply
    714,825.23x = 986,465.66 × 392,542.07
  4. Step 4: Simplify right side
    714,825.23x = 387,229,265,265.28
  5. Step 5: Solve for x
    x = 387,229,265,265.28/714,825.23
  6. Step 6: Final answer
    x = 541,711.81

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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.