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Finding the Fourth Proportional to 1,412,868.82, 1,949,699.62 and 801,062.74

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Solution

The fourth proportional to 1,412,868.82, 1,949,699.62 and 801,062.74 is: 1,105,432.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,868.82 : 1,949,699.62 = 801,062.74 : x
  2. Step 2: Convert to fraction form
    1,412,868.82/1,949,699.62 = 801,062.74/x
  3. Step 3: Cross multiply
    1,412,868.82x = 1,949,699.62 × 801,062.74
  4. Step 4: Simplify right side
    1,412,868.82x = 1,561,831,719,774.16
  5. Step 5: Solve for x
    x = 1,561,831,719,774.16/1,412,868.82
  6. Step 6: Final answer
    x = 1,105,432.93

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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.