Home / 714,216.89-985,634.36-391,924.17

Finding the Fourth Proportional to 714,216.89, 985,634.36 and 391,924.17

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Solution

The fourth proportional to 714,216.89, 985,634.36 and 391,924.17 is: 540,863.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,216.89 : 985,634.36 = 391,924.17 : x
  2. Step 2: Convert to fraction form
    714,216.89/985,634.36 = 391,924.17/x
  3. Step 3: Cross multiply
    714,216.89x = 985,634.36 × 391,924.17
  4. Step 4: Simplify right side
    714,216.89x = 386,293,921,578.69
  5. Step 5: Solve for x
    x = 386,293,921,578.69/714,216.89
  6. Step 6: Final answer
    x = 540,863.61

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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.