Home / 714,206.97-985,602.87-391,922.55

Finding the Fourth Proportional to 714,206.97, 985,602.87 and 391,922.55

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Solution

The fourth proportional to 714,206.97, 985,602.87 and 391,922.55 is: 540,851.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,206.97 : 985,602.87 = 391,922.55 : x
  2. Step 2: Convert to fraction form
    714,206.97/985,602.87 = 391,922.55/x
  3. Step 3: Cross multiply
    714,206.97x = 985,602.87 × 391,922.55
  4. Step 4: Simplify right side
    714,206.97x = 386,279,990,097.72
  5. Step 5: Solve for x
    x = 386,279,990,097.72/714,206.97
  6. Step 6: Final answer
    x = 540,851.61

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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.