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Finding the Fourth Proportional to 3,339.45, 5,008.23 and 999.36

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Solution

The fourth proportional to 3,339.45, 5,008.23 and 999.36 is: 1,498.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.45 : 5,008.23 = 999.36 : x
  2. Step 2: Convert to fraction form
    3,339.45/5,008.23 = 999.36/x
  3. Step 3: Cross multiply
    3,339.45x = 5,008.23 × 999.36
  4. Step 4: Simplify right side
    3,339.45x = 5,005,024.73
  5. Step 5: Solve for x
    x = 5,005,024.73/3,339.45
  6. Step 6: Final answer
    x = 1,498.76

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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.