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Finding the Fourth Proportional to 482,930.98, 666,432.48 and 265,138.57

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Solution

The fourth proportional to 482,930.98, 666,432.48 and 265,138.57 is: 365,884.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,930.98 : 666,432.48 = 265,138.57 : x
  2. Step 2: Convert to fraction form
    482,930.98/666,432.48 = 265,138.57/x
  3. Step 3: Cross multiply
    482,930.98x = 666,432.48 × 265,138.57
  4. Step 4: Simplify right side
    482,930.98x = 176,696,954,748.75
  5. Step 5: Solve for x
    x = 176,696,954,748.75/482,930.98
  6. Step 6: Final answer
    x = 365,884.49

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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.