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Finding the Fourth Proportional to 395,998.22, 546,427.68 and 226,243.28

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Solution

The fourth proportional to 395,998.22, 546,427.68 and 226,243.28 is: 312,187.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,998.22 : 546,427.68 = 226,243.28 : x
  2. Step 2: Convert to fraction form
    395,998.22/546,427.68 = 226,243.28/x
  3. Step 3: Cross multiply
    395,998.22x = 546,427.68 × 226,243.28
  4. Step 4: Simplify right side
    395,998.22x = 123,625,590,605.99
  5. Step 5: Solve for x
    x = 123,625,590,605.99/395,998.22
  6. Step 6: Final answer
    x = 312,187.24

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1.5x scale

Why These Related Problems?

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