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Finding the Fourth Proportional to 294,397.40, 405,860.24 and 198,752.60

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Solution

The fourth proportional to 294,397.40, 405,860.24 and 198,752.60 is: 274,003.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,397.40 : 405,860.24 = 198,752.60 : x
  2. Step 2: Convert to fraction form
    294,397.40/405,860.24 = 198,752.60/x
  3. Step 3: Cross multiply
    294,397.40x = 405,860.24 × 198,752.60
  4. Step 4: Simplify right side
    294,397.40x = 80,665,777,936.62
  5. Step 5: Solve for x
    x = 80,665,777,936.62/294,397.40
  6. Step 6: Final answer
    x = 274,003.02

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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.