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Finding the Fourth Proportional to 404,363.20, 606,982.20 and 254,772.40

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Solution

The fourth proportional to 404,363.20, 606,982.20 and 254,772.40 is: 382,434.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,363.20 : 606,982.20 = 254,772.40 : x
  2. Step 2: Convert to fraction form
    404,363.20/606,982.20 = 254,772.40/x
  3. Step 3: Cross multiply
    404,363.20x = 606,982.20 × 254,772.40
  4. Step 4: Simplify right side
    404,363.20x = 154,642,311,851.28
  5. Step 5: Solve for x
    x = 154,642,311,851.28/404,363.20
  6. Step 6: Final answer
    x = 382,434.19

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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.