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Finding the Fourth Proportional to 482,509.40, 665,942.68 and 267,718.66

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Solution

The fourth proportional to 482,509.40, 665,942.68 and 267,718.66 is: 369,495.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,509.40 : 665,942.68 = 267,718.66 : x
  2. Step 2: Convert to fraction form
    482,509.40/665,942.68 = 267,718.66/x
  3. Step 3: Cross multiply
    482,509.40x = 665,942.68 × 267,718.66
  4. Step 4: Simplify right side
    482,509.40x = 178,285,281,926.41
  5. Step 5: Solve for x
    x = 178,285,281,926.41/482,509.40
  6. Step 6: Final answer
    x = 369,495.98

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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.