Home / 714,724.66-986,313.22-392,431.94

Finding the Fourth Proportional to 714,724.66, 986,313.22 and 392,431.94

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Solution

The fourth proportional to 714,724.66, 986,313.22 and 392,431.94 is: 541,552.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,724.66 : 986,313.22 = 392,431.94 : x
  2. Step 2: Convert to fraction form
    714,724.66/986,313.22 = 392,431.94/x
  3. Step 3: Cross multiply
    714,724.66x = 986,313.22 × 392,431.94
  4. Step 4: Simplify right side
    714,724.66x = 387,060,810,372.25
  5. Step 5: Solve for x
    x = 387,060,810,372.25/714,724.66
  6. Step 6: Final answer
    x = 541,552.34

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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.