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Finding the Fourth Proportional to 406,350.60, 609,307.20 and 169,425.60

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Solution

The fourth proportional to 406,350.60, 609,307.20 and 169,425.60 is: 254,047.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,350.60 : 609,307.20 = 169,425.60 : x
  2. Step 2: Convert to fraction form
    406,350.60/609,307.20 = 169,425.60/x
  3. Step 3: Cross multiply
    406,350.60x = 609,307.20 × 169,425.60
  4. Step 4: Simplify right side
    406,350.60x = 103,232,237,944.32
  5. Step 5: Solve for x
    x = 103,232,237,944.32/406,350.60
  6. Step 6: Final answer
    x = 254,047.21

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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.