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Finding the Fourth Proportional to 537,775.40, 806,468.70 and 271,447.40

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Solution

The fourth proportional to 537,775.40, 806,468.70 and 271,447.40 is: 407,072.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,775.40 : 806,468.70 = 271,447.40 : x
  2. Step 2: Convert to fraction form
    537,775.40/806,468.70 = 271,447.40/x
  3. Step 3: Cross multiply
    537,775.40x = 806,468.70 × 271,447.40
  4. Step 4: Simplify right side
    537,775.40x = 218,913,831,796.38
  5. Step 5: Solve for x
    x = 218,913,831,796.38/537,775.40
  6. Step 6: Final answer
    x = 407,072.97

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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.