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Finding the Fourth Proportional to 406,512.10, 606,868.04 and 379,497.11

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Solution

The fourth proportional to 406,512.10, 606,868.04 and 379,497.11 is: 566,538.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,512.10 : 606,868.04 = 379,497.11 : x
  2. Step 2: Convert to fraction form
    406,512.10/606,868.04 = 379,497.11/x
  3. Step 3: Cross multiply
    406,512.10x = 606,868.04 × 379,497.11
  4. Step 4: Simplify right side
    406,512.10x = 230,304,667,331.36
  5. Step 5: Solve for x
    x = 230,304,667,331.36/406,512.10
  6. Step 6: Final answer
    x = 566,538.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.