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Finding the Fourth Proportional to 404,422.50, 606,781.40 and 235,911.42

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Solution

The fourth proportional to 404,422.50, 606,781.40 and 235,911.42 is: 353,953.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,422.50 : 606,781.40 = 235,911.42 : x
  2. Step 2: Convert to fraction form
    404,422.50/606,781.40 = 235,911.42/x
  3. Step 3: Cross multiply
    404,422.50x = 606,781.40 × 235,911.42
  4. Step 4: Simplify right side
    404,422.50x = 143,146,660,524.03
  5. Step 5: Solve for x
    x = 143,146,660,524.03/404,422.50
  6. Step 6: Final answer
    x = 353,953.25

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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.