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Finding the Fourth Proportional to 503,373.81, 694,655.66 and 277,019.31

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Solution

The fourth proportional to 503,373.81, 694,655.66 and 277,019.31 is: 382,286.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,373.81 : 694,655.66 = 277,019.31 : x
  2. Step 2: Convert to fraction form
    503,373.81/694,655.66 = 277,019.31/x
  3. Step 3: Cross multiply
    503,373.81x = 694,655.66 × 277,019.31
  4. Step 4: Simplify right side
    503,373.81x = 192,433,034,918.30
  5. Step 5: Solve for x
    x = 192,433,034,918.30/503,373.81
  6. Step 6: Final answer
    x = 382,286.54

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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.