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Finding the Fourth Proportional to 504,844.90, 696,687.95 and 275,407.06

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Solution

The fourth proportional to 504,844.90, 696,687.95 and 275,407.06 is: 380,062.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,844.90 : 696,687.95 = 275,407.06 : x
  2. Step 2: Convert to fraction form
    504,844.90/696,687.95 = 275,407.06/x
  3. Step 3: Cross multiply
    504,844.90x = 696,687.95 × 275,407.06
  4. Step 4: Simplify right side
    504,844.90x = 191,872,780,046.93
  5. Step 5: Solve for x
    x = 191,872,780,046.93/504,844.90
  6. Step 6: Final answer
    x = 380,062.83

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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.