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Finding the Fourth Proportional to 577,677.78, 866,671.23 and 178,302.42

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Solution

The fourth proportional to 577,677.78, 866,671.23 and 178,302.42 is: 267,501.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,677.78 : 866,671.23 = 178,302.42 : x
  2. Step 2: Convert to fraction form
    577,677.78/866,671.23 = 178,302.42/x
  3. Step 3: Cross multiply
    577,677.78x = 866,671.23 × 178,302.42
  4. Step 4: Simplify right side
    577,677.78x = 154,529,577,653.38
  5. Step 5: Solve for x
    x = 154,529,577,653.38/577,677.78
  6. Step 6: Final answer
    x = 267,501.34

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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.