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Finding the Fourth Proportional to 1,626,844.19, 2,245,179.33 and 901,919.30

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Solution

The fourth proportional to 1,626,844.19, 2,245,179.33 and 901,919.30 is: 1,244,723.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626,844.19 : 2,245,179.33 = 901,919.30 : x
  2. Step 2: Convert to fraction form
    1,626,844.19/2,245,179.33 = 901,919.30/x
  3. Step 3: Cross multiply
    1,626,844.19x = 2,245,179.33 × 901,919.30
  4. Step 4: Simplify right side
    1,626,844.19x = 2,024,970,558,462.17
  5. Step 5: Solve for x
    x = 2,024,970,558,462.17/1,626,844.19
  6. Step 6: Final answer
    x = 1,244,723.11

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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.