Home / 714,513.17-986,024.26-392,228.75

Finding the Fourth Proportional to 714,513.17, 986,024.26 and 392,228.75

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Solution

The fourth proportional to 714,513.17, 986,024.26 and 392,228.75 is: 541,273.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,513.17 : 986,024.26 = 392,228.75 : x
  2. Step 2: Convert to fraction form
    714,513.17/986,024.26 = 392,228.75/x
  3. Step 3: Cross multiply
    714,513.17x = 986,024.26 × 392,228.75
  4. Step 4: Simplify right side
    714,513.17x = 386,747,062,969.48
  5. Step 5: Solve for x
    x = 386,747,062,969.48/714,513.17
  6. Step 6: Final answer
    x = 541,273.53

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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.