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Finding the Fourth Proportional to 1,745,743.86, 2,408,844.96 and 981,751.86

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Solution

The fourth proportional to 1,745,743.86, 2,408,844.96 and 981,751.86 is: 1,354,659.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745,743.86 : 2,408,844.96 = 981,751.86 : x
  2. Step 2: Convert to fraction form
    1,745,743.86/2,408,844.96 = 981,751.86/x
  3. Step 3: Cross multiply
    1,745,743.86x = 2,408,844.96 × 981,751.86
  4. Step 4: Simplify right side
    1,745,743.86x = 2,364,888,019,931.63
  5. Step 5: Solve for x
    x = 2,364,888,019,931.63/1,745,743.86
  6. Step 6: Final answer
    x = 1,354,659.22

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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.