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Finding the Fourth Proportional to 404,211.40, 606,816.30 and 254,451.40

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Solution

The fourth proportional to 404,211.40, 606,816.30 and 254,451.40 is: 381,991.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,211.40 : 606,816.30 = 254,451.40 : x
  2. Step 2: Convert to fraction form
    404,211.40/606,816.30 = 254,451.40/x
  3. Step 3: Cross multiply
    404,211.40x = 606,816.30 × 254,451.40
  4. Step 4: Simplify right side
    404,211.40x = 154,405,257,077.82
  5. Step 5: Solve for x
    x = 154,405,257,077.82/404,211.40
  6. Step 6: Final answer
    x = 381,991.35

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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.