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Finding the Fourth Proportional to 568,410.18, 784,219.76 and 405,092.42

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Solution

The fourth proportional to 568,410.18, 784,219.76 and 405,092.42 is: 558,894.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,410.18 : 784,219.76 = 405,092.42 : x
  2. Step 2: Convert to fraction form
    568,410.18/784,219.76 = 405,092.42/x
  3. Step 3: Cross multiply
    568,410.18x = 784,219.76 × 405,092.42
  4. Step 4: Simplify right side
    568,410.18x = 317,681,477,481.85
  5. Step 5: Solve for x
    x = 317,681,477,481.85/568,410.18
  6. Step 6: Final answer
    x = 558,894.77

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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.