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Finding the Fourth Proportional to 406,380.60, 609,275.58 and 169,790.94

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Solution

The fourth proportional to 406,380.60, 609,275.58 and 169,790.94 is: 254,563.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,380.60 : 609,275.58 = 169,790.94 : x
  2. Step 2: Convert to fraction form
    406,380.60/609,275.58 = 169,790.94/x
  3. Step 3: Cross multiply
    406,380.60x = 609,275.58 × 169,790.94
  4. Step 4: Simplify right side
    406,380.60x = 103,449,473,447.25
  5. Step 5: Solve for x
    x = 103,449,473,447.25/406,380.60
  6. Step 6: Final answer
    x = 254,563.02

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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.