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Finding the Fourth Proportional to 231,347.80, 347,799.30 and 197,133.40

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Solution

The fourth proportional to 231,347.80, 347,799.30 and 197,133.40 is: 296,362.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,347.80 : 347,799.30 = 197,133.40 : x
  2. Step 2: Convert to fraction form
    231,347.80/347,799.30 = 197,133.40/x
  3. Step 3: Cross multiply
    231,347.80x = 347,799.30 × 197,133.40
  4. Step 4: Simplify right side
    231,347.80x = 68,562,858,526.62
  5. Step 5: Solve for x
    x = 68,562,858,526.62/231,347.80
  6. Step 6: Final answer
    x = 296,362.70

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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.