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Finding the Fourth Proportional to 343,969.12, 474,679.20 and 193,066.12

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Solution

The fourth proportional to 343,969.12, 474,679.20 and 193,066.12 is: 266,432.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,969.12 : 474,679.20 = 193,066.12 : x
  2. Step 2: Convert to fraction form
    343,969.12/474,679.20 = 193,066.12/x
  3. Step 3: Cross multiply
    343,969.12x = 474,679.20 × 193,066.12
  4. Step 4: Simplify right side
    343,969.12x = 91,644,471,388.70
  5. Step 5: Solve for x
    x = 91,644,471,388.70/343,969.12
  6. Step 6: Final answer
    x = 266,432.26

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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.