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Finding the Fourth Proportional to 503,941.20, 695,438.91 and 277,586.70

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Solution

The fourth proportional to 503,941.20, 695,438.91 and 277,586.70 is: 383,069.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,941.20 : 695,438.91 = 277,586.70 : x
  2. Step 2: Convert to fraction form
    503,941.20/695,438.91 = 277,586.70/x
  3. Step 3: Cross multiply
    503,941.20x = 695,438.91 × 277,586.70
  4. Step 4: Simplify right side
    503,941.20x = 193,044,592,078.50
  5. Step 5: Solve for x
    x = 193,044,592,078.50/503,941.20
  6. Step 6: Final answer
    x = 383,069.68

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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.