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Finding the Fourth Proportional to 552,784.98, 762,834.34 and 311,067.42

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Solution

The fourth proportional to 552,784.98, 762,834.34 and 311,067.42 is: 429,268.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,784.98 : 762,834.34 = 311,067.42 : x
  2. Step 2: Convert to fraction form
    552,784.98/762,834.34 = 311,067.42/x
  3. Step 3: Cross multiply
    552,784.98x = 762,834.34 × 311,067.42
  4. Step 4: Simplify right side
    552,784.98x = 237,292,910,031.20
  5. Step 5: Solve for x
    x = 237,292,910,031.20/552,784.98
  6. Step 6: Final answer
    x = 429,268.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.