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Finding the Fourth Proportional to 1,992,239.85, 2,749,278.16 and 1,132,800.04

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Solution

The fourth proportional to 1,992,239.85, 2,749,278.16 and 1,132,800.04 is: 1,563,256.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,239.85 : 2,749,278.16 = 1,132,800.04 : x
  2. Step 2: Convert to fraction form
    1,992,239.85/2,749,278.16 = 1,132,800.04/x
  3. Step 3: Cross multiply
    1,992,239.85x = 2,749,278.16 × 1,132,800.04
  4. Step 4: Simplify right side
    1,992,239.85x = 3,114,382,392,635.03
  5. Step 5: Solve for x
    x = 3,114,382,392,635.03/1,992,239.85
  6. Step 6: Final answer
    x = 1,563,256.75

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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.