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Finding the Fourth Proportional to 1,274,979.22, 1,758,934.51 and 844,512.01

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Solution

The fourth proportional to 1,274,979.22, 1,758,934.51 and 844,512.01 is: 1,165,071.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,979.22 : 1,758,934.51 = 844,512.01 : x
  2. Step 2: Convert to fraction form
    1,274,979.22/1,758,934.51 = 844,512.01/x
  3. Step 3: Cross multiply
    1,274,979.22x = 1,758,934.51 × 844,512.01
  4. Step 4: Simplify right side
    1,274,979.22x = 1,485,441,311,989.85
  5. Step 5: Solve for x
    x = 1,485,441,311,989.85/1,274,979.22
  6. Step 6: Final answer
    x = 1,165,071.00

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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.