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Finding the Fourth Proportional to 3,776,798.88, 5,666,873.04 and 1,979,255.04

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Solution

The fourth proportional to 3,776,798.88, 5,666,873.04 and 1,979,255.04 is: 2,969,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,776,798.88 : 5,666,873.04 = 1,979,255.04 : x
  2. Step 2: Convert to fraction form
    3,776,798.88/5,666,873.04 = 1,979,255.04/x
  3. Step 3: Cross multiply
    3,776,798.88x = 5,666,873.04 × 1,979,255.04
  4. Step 4: Simplify right side
    3,776,798.88x = 11,216,187,025,460.12
  5. Step 5: Solve for x
    x = 11,216,187,025,460.12/3,776,798.88
  6. Step 6: Final answer
    x = 2,969,760.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.