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Finding the Fourth Proportional to 425,745.72, 587,515.68 and 234,767.16

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Solution

The fourth proportional to 425,745.72, 587,515.68 and 234,767.16 is: 323,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,745.72 : 587,515.68 = 234,767.16 : x
  2. Step 2: Convert to fraction form
    425,745.72/587,515.68 = 234,767.16/x
  3. Step 3: Cross multiply
    425,745.72x = 587,515.68 × 234,767.16
  4. Step 4: Simplify right side
    425,745.72x = 137,929,387,649.07
  5. Step 5: Solve for x
    x = 137,929,387,649.07/425,745.72
  6. Step 6: Final answer
    x = 323,971.28

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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.