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Finding the Fourth Proportional to 1,932,751.83, 2,667,253.50 and 1,105,959.87

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Solution

The fourth proportional to 1,932,751.83, 2,667,253.50 and 1,105,959.87 is: 1,526,256.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932,751.83 : 2,667,253.50 = 1,105,959.87 : x
  2. Step 2: Convert to fraction form
    1,932,751.83/2,667,253.50 = 1,105,959.87/x
  3. Step 3: Cross multiply
    1,932,751.83x = 2,667,253.50 × 1,105,959.87
  4. Step 4: Simplify right side
    1,932,751.83x = 2,949,875,334,117.05
  5. Step 5: Solve for x
    x = 2,949,875,334,117.05/1,932,751.83
  6. Step 6: Final answer
    x = 1,526,256.65

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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.