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Finding the Fourth Proportional to 425,484.90, 587,161.56 and 231,894.36

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Solution

The fourth proportional to 425,484.90, 587,161.56 and 231,894.36 is: 320,010.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,484.90 : 587,161.56 = 231,894.36 : x
  2. Step 2: Convert to fraction form
    425,484.90/587,161.56 = 231,894.36/x
  3. Step 3: Cross multiply
    425,484.90x = 587,161.56 × 231,894.36
  4. Step 4: Simplify right side
    425,484.90x = 136,159,454,172.80
  5. Step 5: Solve for x
    x = 136,159,454,172.80/425,484.90
  6. Step 6: Final answer
    x = 320,010.07

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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.