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Finding the Fourth Proportional to 574.96, 856.98 and 533.36

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Solution

The fourth proportional to 574.96, 856.98 and 533.36 is: 794.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.96 : 856.98 = 533.36 : x
  2. Step 2: Convert to fraction form
    574.96/856.98 = 533.36/x
  3. Step 3: Cross multiply
    574.96x = 856.98 × 533.36
  4. Step 4: Simplify right side
    574.96x = 457,078.85
  5. Step 5: Solve for x
    x = 457,078.85/574.96
  6. Step 6: Final answer
    x = 794.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.