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Finding the Fourth Proportional to 273,468.17, 409,611.75 and 266,775.95

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Solution

The fourth proportional to 273,468.17, 409,611.75 and 266,775.95 is: 399,587.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,468.17 : 409,611.75 = 266,775.95 : x
  2. Step 2: Convert to fraction form
    273,468.17/409,611.75 = 266,775.95/x
  3. Step 3: Cross multiply
    273,468.17x = 409,611.75 × 266,775.95
  4. Step 4: Simplify right side
    273,468.17x = 109,274,561,689.35
  5. Step 5: Solve for x
    x = 109,274,561,689.35/273,468.17
  6. Step 6: Final answer
    x = 399,587.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.