Home / 714,435.18-985,933.29-392,175.27

Finding the Fourth Proportional to 714,435.18, 985,933.29 and 392,175.27

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Solution

The fourth proportional to 714,435.18, 985,933.29 and 392,175.27 is: 541,208.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,435.18 : 985,933.29 = 392,175.27 : x
  2. Step 2: Convert to fraction form
    714,435.18/985,933.29 = 392,175.27/x
  3. Step 3: Cross multiply
    714,435.18x = 985,933.29 × 392,175.27
  4. Step 4: Simplify right side
    714,435.18x = 386,658,654,207.74
  5. Step 5: Solve for x
    x = 386,658,654,207.74/714,435.18
  6. Step 6: Final answer
    x = 541,208.87

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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.