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Finding the Fourth Proportional to 406,425.54, 561,141.12 and 253,696.26

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Solution

The fourth proportional to 406,425.54, 561,141.12 and 253,696.26 is: 350,271.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,425.54 : 561,141.12 = 253,696.26 : x
  2. Step 2: Convert to fraction form
    406,425.54/561,141.12 = 253,696.26/x
  3. Step 3: Cross multiply
    406,425.54x = 561,141.12 × 253,696.26
  4. Step 4: Simplify right side
    406,425.54x = 142,359,403,476.21
  5. Step 5: Solve for x
    x = 142,359,403,476.21/406,425.54
  6. Step 6: Final answer
    x = 350,271.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.