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Finding the Fourth Proportional to 406,225.51, 608,940.54 and 169,635.85

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Solution

The fourth proportional to 406,225.51, 608,940.54 and 169,635.85 is: 254,287.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,225.51 : 608,940.54 = 169,635.85 : x
  2. Step 2: Convert to fraction form
    406,225.51/608,940.54 = 169,635.85/x
  3. Step 3: Cross multiply
    406,225.51x = 608,940.54 × 169,635.85
  4. Step 4: Simplify right side
    406,225.51x = 103,298,146,102.36
  5. Step 5: Solve for x
    x = 103,298,146,102.36/406,225.51
  6. Step 6: Final answer
    x = 254,287.69

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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.