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Finding the Fourth Proportional to 3,752,764.29, 5,629,148.06 and 912,858.93

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Solution

The fourth proportional to 3,752,764.29, 5,629,148.06 and 912,858.93 is: 1,369,288.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752,764.29 : 5,629,148.06 = 912,858.93 : x
  2. Step 2: Convert to fraction form
    3,752,764.29/5,629,148.06 = 912,858.93/x
  3. Step 3: Cross multiply
    3,752,764.29x = 5,629,148.06 × 912,858.93
  4. Step 4: Simplify right side
    3,752,764.29x = 5,138,618,070,298.88
  5. Step 5: Solve for x
    x = 5,138,618,070,298.88/3,752,764.29
  6. Step 6: Final answer
    x = 1,369,288.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.