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Finding the Fourth Proportional to 664,381.44, 915,240.96 and 568,581.12

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Solution

The fourth proportional to 664,381.44, 915,240.96 and 568,581.12 is: 783,268.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,381.44 : 915,240.96 = 568,581.12 : x
  2. Step 2: Convert to fraction form
    664,381.44/915,240.96 = 568,581.12/x
  3. Step 3: Cross multiply
    664,381.44x = 915,240.96 × 568,581.12
  4. Step 4: Simplify right side
    664,381.44x = 520,388,730,106.68
  5. Step 5: Solve for x
    x = 520,388,730,106.68/664,381.44
  6. Step 6: Final answer
    x = 783,268.01

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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.