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Finding the Fourth Proportional to 2,917,854.72, 4,027,311.36 and 1,711,019.52

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Solution

The fourth proportional to 2,917,854.72, 4,027,311.36 and 1,711,019.52 is: 2,361,600.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917,854.72 : 4,027,311.36 = 1,711,019.52 : x
  2. Step 2: Convert to fraction form
    2,917,854.72/4,027,311.36 = 1,711,019.52/x
  3. Step 3: Cross multiply
    2,917,854.72x = 4,027,311.36 × 1,711,019.52
  4. Step 4: Simplify right side
    2,917,854.72x = 6,890,808,350,077.75
  5. Step 5: Solve for x
    x = 6,890,808,350,077.75/2,917,854.72
  6. Step 6: Final answer
    x = 2,361,600.91

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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.