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Finding the Fourth Proportional to 503,902.80, 695,393.46 and 274,470.66

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Solution

The fourth proportional to 503,902.80, 695,393.46 and 274,470.66 is: 378,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,902.80 : 695,393.46 = 274,470.66 : x
  2. Step 2: Convert to fraction form
    503,902.80/695,393.46 = 274,470.66/x
  3. Step 3: Cross multiply
    503,902.80x = 695,393.46 × 274,470.66
  4. Step 4: Simplify right side
    503,902.80x = 190,865,101,925.88
  5. Step 5: Solve for x
    x = 190,865,101,925.88/503,902.80
  6. Step 6: Final answer
    x = 378,773.65

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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.