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Finding the Fourth Proportional to 503,440.11, 694,467.27 and 382,389.66

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Solution

The fourth proportional to 503,440.11, 694,467.27 and 382,389.66 is: 527,484.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,440.11 : 694,467.27 = 382,389.66 : x
  2. Step 2: Convert to fraction form
    503,440.11/694,467.27 = 382,389.66/x
  3. Step 3: Cross multiply
    503,440.11x = 694,467.27 × 382,389.66
  4. Step 4: Simplify right side
    503,440.11x = 265,557,103,256.43
  5. Step 5: Solve for x
    x = 265,557,103,256.43/503,440.11
  6. Step 6: Final answer
    x = 527,484.99

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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.