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Finding the Fourth Proportional to 193,897.80, 290,846.70 and 192,515.40

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Solution

The fourth proportional to 193,897.80, 290,846.70 and 192,515.40 is: 288,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,897.80 : 290,846.70 = 192,515.40 : x
  2. Step 2: Convert to fraction form
    193,897.80/290,846.70 = 192,515.40/x
  3. Step 3: Cross multiply
    193,897.80x = 290,846.70 × 192,515.40
  4. Step 4: Simplify right side
    193,897.80x = 55,992,468,789.18
  5. Step 5: Solve for x
    x = 55,992,468,789.18/193,897.80
  6. Step 6: Final answer
    x = 288,773.10

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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.