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Finding the Fourth Proportional to 625,620.06, 938,561.31 and 270,684.54

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Solution

The fourth proportional to 625,620.06, 938,561.31 and 270,684.54 is: 406,083.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,620.06 : 938,561.31 = 270,684.54 : x
  2. Step 2: Convert to fraction form
    625,620.06/938,561.31 = 270,684.54/x
  3. Step 3: Cross multiply
    625,620.06x = 938,561.31 × 270,684.54
  4. Step 4: Simplify right side
    625,620.06x = 254,054,036,459.15
  5. Step 5: Solve for x
    x = 254,054,036,459.15/625,620.06
  6. Step 6: Final answer
    x = 406,083.58

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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.