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Finding the Fourth Proportional to 1,095,579.70, 1,643,369.55 and 927,618.10

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Solution

The fourth proportional to 1,095,579.70, 1,643,369.55 and 927,618.10 is: 1,391,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,579.70 : 1,643,369.55 = 927,618.10 : x
  2. Step 2: Convert to fraction form
    1,095,579.70/1,643,369.55 = 927,618.10/x
  3. Step 3: Cross multiply
    1,095,579.70x = 1,643,369.55 × 927,618.10
  4. Step 4: Simplify right side
    1,095,579.70x = 1,524,419,339,568.86
  5. Step 5: Solve for x
    x = 1,524,419,339,568.86/1,095,579.70
  6. Step 6: Final answer
    x = 1,391,427.15

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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.