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Finding the Fourth Proportional to 503,310.42, 755,477.76 and 219,127.98

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Solution

The fourth proportional to 503,310.42, 755,477.76 and 219,127.98 is: 328,914.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,310.42 : 755,477.76 = 219,127.98 : x
  2. Step 2: Convert to fraction form
    503,310.42/755,477.76 = 219,127.98/x
  3. Step 3: Cross multiply
    503,310.42x = 755,477.76 × 219,127.98
  4. Step 4: Simplify right side
    503,310.42x = 165,546,315,483.73
  5. Step 5: Solve for x
    x = 165,546,315,483.73/503,310.42
  6. Step 6: Final answer
    x = 328,914.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.