Home / 714,428.46-985,923.99-392,168.52

Finding the Fourth Proportional to 714,428.46, 985,923.99 and 392,168.52

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Solution

The fourth proportional to 714,428.46, 985,923.99 and 392,168.52 is: 541,199.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,428.46 : 985,923.99 = 392,168.52 : x
  2. Step 2: Convert to fraction form
    714,428.46/985,923.99 = 392,168.52/x
  3. Step 3: Cross multiply
    714,428.46x = 985,923.99 × 392,168.52
  4. Step 4: Simplify right side
    714,428.46x = 386,648,351,990.80
  5. Step 5: Solve for x
    x = 386,648,351,990.80/714,428.46
  6. Step 6: Final answer
    x = 541,199.54

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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.