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Finding the Fourth Proportional to 404,522.46, 606,607.20 and 214,937.10

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Solution

The fourth proportional to 404,522.46, 606,607.20 and 214,937.10 is: 322,311.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,522.46 : 606,607.20 = 214,937.10 : x
  2. Step 2: Convert to fraction form
    404,522.46/606,607.20 = 214,937.10/x
  3. Step 3: Cross multiply
    404,522.46x = 606,607.20 × 214,937.10
  4. Step 4: Simplify right side
    404,522.46x = 130,382,392,407.12
  5. Step 5: Solve for x
    x = 130,382,392,407.12/404,522.46
  6. Step 6: Final answer
    x = 322,311.87

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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.