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Finding the Fourth Proportional to 869,788.13, 1,200,832.49 and 568,507.01

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Solution

The fourth proportional to 869,788.13, 1,200,832.49 and 568,507.01 is: 784,882.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,788.13 : 1,200,832.49 = 568,507.01 : x
  2. Step 2: Convert to fraction form
    869,788.13/1,200,832.49 = 568,507.01/x
  3. Step 3: Cross multiply
    869,788.13x = 1,200,832.49 × 568,507.01
  4. Step 4: Simplify right side
    869,788.13x = 682,681,683,817.86
  5. Step 5: Solve for x
    x = 682,681,683,817.86/869,788.13
  6. Step 6: Final answer
    x = 784,882.74

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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.