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Finding the Fourth Proportional to 357,412.36, 493,232.48 and 196,270.78

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Solution

The fourth proportional to 357,412.36, 493,232.48 and 196,270.78 is: 270,855.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,412.36 : 493,232.48 = 196,270.78 : x
  2. Step 2: Convert to fraction form
    357,412.36/493,232.48 = 196,270.78/x
  3. Step 3: Cross multiply
    357,412.36x = 493,232.48 × 196,270.78
  4. Step 4: Simplify right side
    357,412.36x = 96,807,123,570.93
  5. Step 5: Solve for x
    x = 96,807,123,570.93/357,412.36
  6. Step 6: Final answer
    x = 270,855.56

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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.