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Finding the Fourth Proportional to 425,573.48, 587,282.64 and 231,979.52

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Solution

The fourth proportional to 425,573.48, 587,282.64 and 231,979.52 is: 320,126.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,573.48 : 587,282.64 = 231,979.52 : x
  2. Step 2: Convert to fraction form
    425,573.48/587,282.64 = 231,979.52/x
  3. Step 3: Cross multiply
    425,573.48x = 587,282.64 × 231,979.52
  4. Step 4: Simplify right side
    425,573.48x = 136,237,544,931.53
  5. Step 5: Solve for x
    x = 136,237,544,931.53/425,573.48
  6. Step 6: Final answer
    x = 320,126.96

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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.