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Finding the Fourth Proportional to 406,439.51, 609,659.33 and 169,653.02

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Solution

The fourth proportional to 406,439.51, 609,659.33 and 169,653.02 is: 254,479.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,439.51 : 609,659.33 = 169,653.02 : x
  2. Step 2: Convert to fraction form
    406,439.51/609,659.33 = 169,653.02/x
  3. Step 3: Cross multiply
    406,439.51x = 609,659.33 × 169,653.02
  4. Step 4: Simplify right side
    406,439.51x = 103,430,542,609.12
  5. Step 5: Solve for x
    x = 103,430,542,609.12/406,439.51
  6. Step 6: Final answer
    x = 254,479.55

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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.