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Finding the Fourth Proportional to 449,127.78, 619,900.55 and 296,193.57

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Solution

The fourth proportional to 449,127.78, 619,900.55 and 296,193.57 is: 408,815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,127.78 : 619,900.55 = 296,193.57 : x
  2. Step 2: Convert to fraction form
    449,127.78/619,900.55 = 296,193.57/x
  3. Step 3: Cross multiply
    449,127.78x = 619,900.55 × 296,193.57
  4. Step 4: Simplify right side
    449,127.78x = 183,610,555,468.50
  5. Step 5: Solve for x
    x = 183,610,555,468.50/449,127.78
  6. Step 6: Final answer
    x = 408,815.85

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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.