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Finding the Fourth Proportional to 503,942.20, 695,440.29 and 277,587.70

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Solution

The fourth proportional to 503,942.20, 695,440.29 and 277,587.70 is: 383,071.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,942.20 : 695,440.29 = 277,587.70 : x
  2. Step 2: Convert to fraction form
    503,942.20/695,440.29 = 277,587.70/x
  3. Step 3: Cross multiply
    503,942.20x = 695,440.29 × 277,587.70
  4. Step 4: Simplify right side
    503,942.20x = 193,045,670,588.43
  5. Step 5: Solve for x
    x = 193,045,670,588.43/503,942.20
  6. Step 6: Final answer
    x = 383,071.06

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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.