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Finding the Fourth Proportional to 404,402.10, 606,603.15 and 254,811.30

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Solution

The fourth proportional to 404,402.10, 606,603.15 and 254,811.30 is: 382,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,402.10 : 606,603.15 = 254,811.30 : x
  2. Step 2: Convert to fraction form
    404,402.10/606,603.15 = 254,811.30/x
  3. Step 3: Cross multiply
    404,402.10x = 606,603.15 × 254,811.30
  4. Step 4: Simplify right side
    404,402.10x = 154,569,337,235.60
  5. Step 5: Solve for x
    x = 154,569,337,235.60/404,402.10
  6. Step 6: Final answer
    x = 382,216.95

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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.