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Finding the Fourth Proportional to 425,422.88, 587,076.08 and 231,832.32

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Solution

The fourth proportional to 425,422.88, 587,076.08 and 231,832.32 is: 319,924.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,422.88 : 587,076.08 = 231,832.32 : x
  2. Step 2: Convert to fraction form
    425,422.88/587,076.08 = 231,832.32/x
  3. Step 3: Cross multiply
    425,422.88x = 587,076.08 × 231,832.32
  4. Step 4: Simplify right side
    425,422.88x = 136,103,209,642.91
  5. Step 5: Solve for x
    x = 136,103,209,642.91/425,422.88
  6. Step 6: Final answer
    x = 319,924.52

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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.