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Finding the Fourth Proportional to 1,815,765.66, 2,505,660.66 and 1,041,356.48

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Solution

The fourth proportional to 1,815,765.66, 2,505,660.66 and 1,041,356.48 is: 1,437,016.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,765.66 : 2,505,660.66 = 1,041,356.48 : x
  2. Step 2: Convert to fraction form
    1,815,765.66/2,505,660.66 = 1,041,356.48/x
  3. Step 3: Cross multiply
    1,815,765.66x = 2,505,660.66 × 1,041,356.48
  4. Step 4: Simplify right side
    1,815,765.66x = 2,609,285,956,562.23
  5. Step 5: Solve for x
    x = 2,609,285,956,562.23/1,815,765.66
  6. Step 6: Final answer
    x = 1,437,016.91

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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.