Home / 3,178,839.11-4,386,820.79-1,728,524.15

Finding the Fourth Proportional to 3,178,839.11, 4,386,820.79 and 1,728,524.15

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Solution

The fourth proportional to 3,178,839.11, 4,386,820.79 and 1,728,524.15 is: 2,385,375.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,839.11 : 4,386,820.79 = 1,728,524.15 : x
  2. Step 2: Convert to fraction form
    3,178,839.11/4,386,820.79 = 1,728,524.15/x
  3. Step 3: Cross multiply
    3,178,839.11x = 4,386,820.79 × 1,728,524.15
  4. Step 4: Simplify right side
    3,178,839.11x = 7,582,725,692,525.44
  5. Step 5: Solve for x
    x = 7,582,725,692,525.44/3,178,839.11
  6. Step 6: Final answer
    x = 2,385,375.74

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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.