Home / 714,983.44-986,689.04-392,723.32

Finding the Fourth Proportional to 714,983.44, 986,689.04 and 392,723.32

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Solution

The fourth proportional to 714,983.44, 986,689.04 and 392,723.32 is: 541,964.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,983.44 : 986,689.04 = 392,723.32 : x
  2. Step 2: Convert to fraction form
    714,983.44/986,689.04 = 392,723.32/x
  3. Step 3: Cross multiply
    714,983.44x = 986,689.04 × 392,723.32
  4. Step 4: Simplify right side
    714,983.44x = 387,495,795,596.41
  5. Step 5: Solve for x
    x = 387,495,795,596.41/714,983.44
  6. Step 6: Final answer
    x = 541,964.71

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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.