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Finding the Fourth Proportional to 2,786,511.60, 3,843,752.89 and 1,752,379.08

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Solution

The fourth proportional to 2,786,511.60, 3,843,752.89 and 1,752,379.08 is: 2,417,256.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786,511.60 : 3,843,752.89 = 1,752,379.08 : x
  2. Step 2: Convert to fraction form
    2,786,511.60/3,843,752.89 = 1,752,379.08/x
  3. Step 3: Cross multiply
    2,786,511.60x = 3,843,752.89 × 1,752,379.08
  4. Step 4: Simplify right side
    2,786,511.60x = 6,735,712,148,744.59
  5. Step 5: Solve for x
    x = 6,735,712,148,744.59/2,786,511.60
  6. Step 6: Final answer
    x = 2,417,256.09

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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.