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Finding the Fourth Proportional to 406,283.30, 608,065.19 and 400,906.65

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Solution

The fourth proportional to 406,283.30, 608,065.19 and 400,906.65 is: 600,018.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,283.30 : 608,065.19 = 400,906.65 : x
  2. Step 2: Convert to fraction form
    406,283.30/608,065.19 = 400,906.65/x
  3. Step 3: Cross multiply
    406,283.30x = 608,065.19 × 400,906.65
  4. Step 4: Simplify right side
    406,283.30x = 243,777,378,304.51
  5. Step 5: Solve for x
    x = 243,777,378,304.51/406,283.30
  6. Step 6: Final answer
    x = 600,018.21

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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.