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Finding the Fourth Proportional to 482,861.98, 666,344.64 and 268,003.90

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Solution

The fourth proportional to 482,861.98, 666,344.64 and 268,003.90 is: 369,842.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,861.98 : 666,344.64 = 268,003.90 : x
  2. Step 2: Convert to fraction form
    482,861.98/666,344.64 = 268,003.90/x
  3. Step 3: Cross multiply
    482,861.98x = 666,344.64 × 268,003.90
  4. Step 4: Simplify right side
    482,861.98x = 178,582,962,264.10
  5. Step 5: Solve for x
    x = 178,582,962,264.10/482,861.98
  6. Step 6: Final answer
    x = 369,842.67

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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.