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Finding the Fourth Proportional to 1,333,764.97, 1,840,595.44 and 721,917.56

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Solution

The fourth proportional to 1,333,764.97, 1,840,595.44 and 721,917.56 is: 996,246.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,764.97 : 1,840,595.44 = 721,917.56 : x
  2. Step 2: Convert to fraction form
    1,333,764.97/1,840,595.44 = 721,917.56/x
  3. Step 3: Cross multiply
    1,333,764.97x = 1,840,595.44 × 721,917.56
  4. Step 4: Simplify right side
    1,333,764.97x = 1,328,758,168,991.93
  5. Step 5: Solve for x
    x = 1,328,758,168,991.93/1,333,764.97
  6. Step 6: Final answer
    x = 996,246.11

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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.