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Finding the Fourth Proportional to 425,559.72, 587,254.74 and 231,963.18

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Solution

The fourth proportional to 425,559.72, 587,254.74 and 231,963.18 is: 320,099.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,559.72 : 587,254.74 = 231,963.18 : x
  2. Step 2: Convert to fraction form
    425,559.72/587,254.74 = 231,963.18/x
  3. Step 3: Cross multiply
    425,559.72x = 587,254.74 × 231,963.18
  4. Step 4: Simplify right side
    425,559.72x = 136,221,476,960.47
  5. Step 5: Solve for x
    x = 136,221,476,960.47/425,559.72
  6. Step 6: Final answer
    x = 320,099.55

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1.5x scale

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.