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Finding the Fourth Proportional to 858,099.92, 1,179,978.72 and 744,725.84

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Solution

The fourth proportional to 858,099.92, 1,179,978.72 and 744,725.84 is: 1,024,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,099.92 : 1,179,978.72 = 744,725.84 : x
  2. Step 2: Convert to fraction form
    858,099.92/1,179,978.72 = 744,725.84/x
  3. Step 3: Cross multiply
    858,099.92x = 1,179,978.72 × 744,725.84
  4. Step 4: Simplify right side
    858,099.92x = 878,760,643,434.13
  5. Step 5: Solve for x
    x = 878,760,643,434.13/858,099.92
  6. Step 6: Final answer
    x = 1,024,077.29

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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.