Home / 2,178,104.69-3,005,343.99-1,272,511.73

Finding the Fourth Proportional to 2,178,104.69, 3,005,343.99 and 1,272,511.73

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Solution

The fourth proportional to 2,178,104.69, 3,005,343.99 and 1,272,511.73 is: 1,755,808.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,104.69 : 3,005,343.99 = 1,272,511.73 : x
  2. Step 2: Convert to fraction form
    2,178,104.69/3,005,343.99 = 1,272,511.73/x
  3. Step 3: Cross multiply
    2,178,104.69x = 3,005,343.99 × 1,272,511.73
  4. Step 4: Simplify right side
    2,178,104.69x = 3,824,335,479,960.00
  5. Step 5: Solve for x
    x = 3,824,335,479,960.00/2,178,104.69
  6. Step 6: Final answer
    x = 1,755,808.84

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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.