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Finding the Fourth Proportional to 448,577.88, 619,085.49 and 274,250.38

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Solution

The fourth proportional to 448,577.88, 619,085.49 and 274,250.38 is: 378,494.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,577.88 : 619,085.49 = 274,250.38 : x
  2. Step 2: Convert to fraction form
    448,577.88/619,085.49 = 274,250.38/x
  3. Step 3: Cross multiply
    448,577.88x = 619,085.49 × 274,250.38
  4. Step 4: Simplify right side
    448,577.88x = 169,784,430,365.71
  5. Step 5: Solve for x
    x = 169,784,430,365.71/448,577.88
  6. Step 6: Final answer
    x = 378,494.88

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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.