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Finding the Fourth Proportional to 404,538.17, 606,630.80 and 214,952.87

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Solution

The fourth proportional to 404,538.17, 606,630.80 and 214,952.87 is: 322,335.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,538.17 : 606,630.80 = 214,952.87 : x
  2. Step 2: Convert to fraction form
    404,538.17/606,630.80 = 214,952.87/x
  3. Step 3: Cross multiply
    404,538.17x = 606,630.80 × 214,952.87
  4. Step 4: Simplify right side
    404,538.17x = 130,397,033,544.36
  5. Step 5: Solve for x
    x = 130,397,033,544.36/404,538.17
  6. Step 6: Final answer
    x = 322,335.55

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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.