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Finding the Fourth Proportional to 734,568.56, 1,101,862.56 and 418,649.12

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Solution

The fourth proportional to 734,568.56, 1,101,862.56 and 418,649.12 is: 627,979.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,568.56 : 1,101,862.56 = 418,649.12 : x
  2. Step 2: Convert to fraction form
    734,568.56/1,101,862.56 = 418,649.12/x
  3. Step 3: Cross multiply
    734,568.56x = 1,101,862.56 × 418,649.12
  4. Step 4: Simplify right side
    734,568.56x = 461,293,791,104.95
  5. Step 5: Solve for x
    x = 461,293,791,104.95/734,568.56
  6. Step 6: Final answer
    x = 627,979.22

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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.