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Finding the Fourth Proportional to 571,507.41, 857,261.12 and 192,396.43

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Solution

The fourth proportional to 571,507.41, 857,261.12 and 192,396.43 is: 288,594.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,507.41 : 857,261.12 = 192,396.43 : x
  2. Step 2: Convert to fraction form
    571,507.41/857,261.12 = 192,396.43/x
  3. Step 3: Cross multiply
    571,507.41x = 857,261.12 × 192,396.43
  4. Step 4: Simplify right side
    571,507.41x = 164,933,979,065.80
  5. Step 5: Solve for x
    x = 164,933,979,065.80/571,507.41
  6. Step 6: Final answer
    x = 288,594.65

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Double scale
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Similar ratio
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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.