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Finding the Fourth Proportional to 1,624.82, 2,437 and 529.20

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Solution

The fourth proportional to 1,624.82, 2,437 and 529.20 is: 793.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,624.82 : 2,437 = 529.20 : x
  2. Step 2: Convert to fraction form
    1,624.82/2,437 = 529.20/x
  3. Step 3: Cross multiply
    1,624.82x = 2,437 × 529.20
  4. Step 4: Simplify right side
    1,624.82x = 1,289,660.40
  5. Step 5: Solve for x
    x = 1,289,660.40/1,624.82
  6. Step 6: Final answer
    x = 793.73

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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.