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Finding the Fourth Proportional to 488,869.32, 674,637.54 and 274,009.44

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Solution

The fourth proportional to 488,869.32, 674,637.54 and 274,009.44 is: 378,131.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,869.32 : 674,637.54 = 274,009.44 : x
  2. Step 2: Convert to fraction form
    488,869.32/674,637.54 = 274,009.44/x
  3. Step 3: Cross multiply
    488,869.32x = 674,637.54 × 274,009.44
  4. Step 4: Simplify right side
    488,869.32x = 184,857,054,538.38
  5. Step 5: Solve for x
    x = 184,857,054,538.38/488,869.32
  6. Step 6: Final answer
    x = 378,131.84

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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.