Home / 714,660.94-986,187.90-392,369.22

Finding the Fourth Proportional to 714,660.94, 986,187.90 and 392,369.22

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Solution

The fourth proportional to 714,660.94, 986,187.90 and 392,369.22 is: 541,445.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,660.94 : 986,187.90 = 392,369.22 : x
  2. Step 2: Convert to fraction form
    714,660.94/986,187.90 = 392,369.22/x
  3. Step 3: Cross multiply
    714,660.94x = 986,187.90 × 392,369.22
  4. Step 4: Simplify right side
    714,660.94x = 386,949,777,096.44
  5. Step 5: Solve for x
    x = 386,949,777,096.44/714,660.94
  6. Step 6: Final answer
    x = 541,445.26

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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.