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Finding the Fourth Proportional to 656,563.96, 906,805.20 and 441,330.22

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Solution

The fourth proportional to 656,563.96, 906,805.20 and 441,330.22 is: 609,537.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,563.96 : 906,805.20 = 441,330.22 : x
  2. Step 2: Convert to fraction form
    656,563.96/906,805.20 = 441,330.22/x
  3. Step 3: Cross multiply
    656,563.96x = 906,805.20 × 441,330.22
  4. Step 4: Simplify right side
    656,563.96x = 400,200,538,413.14
  5. Step 5: Solve for x
    x = 400,200,538,413.14/656,563.96
  6. Step 6: Final answer
    x = 609,537.78

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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.