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Finding the Fourth Proportional to 1,373,091.75, 1,894,978.38 and 761,436.04

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Solution

The fourth proportional to 1,373,091.75, 1,894,978.38 and 761,436.04 is: 1,050,843.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,091.75 : 1,894,978.38 = 761,436.04 : x
  2. Step 2: Convert to fraction form
    1,373,091.75/1,894,978.38 = 761,436.04/x
  3. Step 3: Cross multiply
    1,373,091.75x = 1,894,978.38 × 761,436.04
  4. Step 4: Simplify right side
    1,373,091.75x = 1,442,904,833,552.82
  5. Step 5: Solve for x
    x = 1,442,904,833,552.82/1,373,091.75
  6. Step 6: Final answer
    x = 1,050,843.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.