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Finding the Fourth Proportional to 404,635.40, 607,452.30 and 254,875.40

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Solution

The fourth proportional to 404,635.40, 607,452.30 and 254,875.40 is: 382,627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,635.40 : 607,452.30 = 254,875.40 : x
  2. Step 2: Convert to fraction form
    404,635.40/607,452.30 = 254,875.40/x
  3. Step 3: Cross multiply
    404,635.40x = 607,452.30 × 254,875.40
  4. Step 4: Simplify right side
    404,635.40x = 154,824,647,943.42
  5. Step 5: Solve for x
    x = 154,824,647,943.42/404,635.40
  6. Step 6: Final answer
    x = 382,627.54

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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.