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Finding the Fourth Proportional to 404,247.80, 606,371.70 and 123,764.60

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Solution

The fourth proportional to 404,247.80, 606,371.70 and 123,764.60 is: 185,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,247.80 : 606,371.70 = 123,764.60 : x
  2. Step 2: Convert to fraction form
    404,247.80/606,371.70 = 123,764.60/x
  3. Step 3: Cross multiply
    404,247.80x = 606,371.70 × 123,764.60
  4. Step 4: Simplify right side
    404,247.80x = 75,047,350,901.82
  5. Step 5: Solve for x
    x = 75,047,350,901.82/404,247.80
  6. Step 6: Final answer
    x = 185,646.90

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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.