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Finding the Fourth Proportional to 283,605.20, 396,522.40 and 283,605.20

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Solution

The fourth proportional to 283,605.20, 396,522.40 and 283,605.20 is: 396,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,605.20 : 396,522.40 = 283,605.20 : x
  2. Step 2: Convert to fraction form
    283,605.20/396,522.40 = 283,605.20/x
  3. Step 3: Cross multiply
    283,605.20x = 396,522.40 × 283,605.20
  4. Step 4: Simplify right side
    283,605.20x = 112,455,814,556.48
  5. Step 5: Solve for x
    x = 112,455,814,556.48/283,605.20
  6. Step 6: Final answer
    x = 396,522.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.