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Finding the Fourth Proportional to 439,085.61, 605,930.22 and 248,094.90

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Solution

The fourth proportional to 439,085.61, 605,930.22 and 248,094.90 is: 342,366.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,085.61 : 605,930.22 = 248,094.90 : x
  2. Step 2: Convert to fraction form
    439,085.61/605,930.22 = 248,094.90/x
  3. Step 3: Cross multiply
    439,085.61x = 605,930.22 × 248,094.90
  4. Step 4: Simplify right side
    439,085.61x = 150,328,197,337.88
  5. Step 5: Solve for x
    x = 150,328,197,337.88/439,085.61
  6. Step 6: Final answer
    x = 342,366.49

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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.