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Finding the Fourth Proportional to 448,686.98, 619,077.22 and 274,212.68

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Solution

The fourth proportional to 448,686.98, 619,077.22 and 274,212.68 is: 378,345.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,686.98 : 619,077.22 = 274,212.68 : x
  2. Step 2: Convert to fraction form
    448,686.98/619,077.22 = 274,212.68/x
  3. Step 3: Cross multiply
    448,686.98x = 619,077.22 × 274,212.68
  4. Step 4: Simplify right side
    448,686.98x = 169,758,819,842.23
  5. Step 5: Solve for x
    x = 169,758,819,842.23/448,686.98
  6. Step 6: Final answer
    x = 378,345.77

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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.