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Finding the Fourth Proportional to 404,295.20, 605,713.80 and 193,468.40

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Solution

The fourth proportional to 404,295.20, 605,713.80 and 193,468.40 is: 289,853.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,295.20 : 605,713.80 = 193,468.40 : x
  2. Step 2: Convert to fraction form
    404,295.20/605,713.80 = 193,468.40/x
  3. Step 3: Cross multiply
    404,295.20x = 605,713.80 × 193,468.40
  4. Step 4: Simplify right side
    404,295.20x = 117,186,479,743.92
  5. Step 5: Solve for x
    x = 117,186,479,743.92/404,295.20
  6. Step 6: Final answer
    x = 289,853.75

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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.