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Finding the Fourth Proportional to 404,231.20, 606,348.90 and 104,690.80

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Solution

The fourth proportional to 404,231.20, 606,348.90 and 104,690.80 is: 157,036.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,231.20 : 606,348.90 = 104,690.80 : x
  2. Step 2: Convert to fraction form
    404,231.20/606,348.90 = 104,690.80/x
  3. Step 3: Cross multiply
    404,231.20x = 606,348.90 × 104,690.80
  4. Step 4: Simplify right side
    404,231.20x = 63,479,151,420.12
  5. Step 5: Solve for x
    x = 63,479,151,420.12/404,231.20
  6. Step 6: Final answer
    x = 157,036.74

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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.