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Finding the Fourth Proportional to 322,374.40, 483,561.60 and 274,681.60

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Solution

The fourth proportional to 322,374.40, 483,561.60 and 274,681.60 is: 412,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,374.40 : 483,561.60 = 274,681.60 : x
  2. Step 2: Convert to fraction form
    322,374.40/483,561.60 = 274,681.60/x
  3. Step 3: Cross multiply
    322,374.40x = 483,561.60 × 274,681.60
  4. Step 4: Simplify right side
    322,374.40x = 132,825,473,986.56
  5. Step 5: Solve for x
    x = 132,825,473,986.56/322,374.40
  6. Step 6: Final answer
    x = 412,022.40

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1.5x scale

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.