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Finding the Fourth Proportional to 425,391.21, 587,034.90 and 241,628.49

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Solution

The fourth proportional to 425,391.21, 587,034.90 and 241,628.49 is: 333,444.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,391.21 : 587,034.90 = 241,628.49 : x
  2. Step 2: Convert to fraction form
    425,391.21/587,034.90 = 241,628.49/x
  3. Step 3: Cross multiply
    425,391.21x = 587,034.90 × 241,628.49
  4. Step 4: Simplify right side
    425,391.21x = 141,844,356,464.30
  5. Step 5: Solve for x
    x = 141,844,356,464.30/425,391.21
  6. Step 6: Final answer
    x = 333,444.49

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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.