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Finding the Fourth Proportional to 568,067.80, 852,101.70 and 318,717.40

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Solution

The fourth proportional to 568,067.80, 852,101.70 and 318,717.40 is: 478,076.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,067.80 : 852,101.70 = 318,717.40 : x
  2. Step 2: Convert to fraction form
    568,067.80/852,101.70 = 318,717.40/x
  3. Step 3: Cross multiply
    568,067.80x = 852,101.70 × 318,717.40
  4. Step 4: Simplify right side
    568,067.80x = 271,579,638,359.58
  5. Step 5: Solve for x
    x = 271,579,638,359.58/568,067.80
  6. Step 6: Final answer
    x = 478,076.10

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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.