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Finding the Fourth Proportional to 2,352.89, 3,529.05 and 621.65

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Solution

The fourth proportional to 2,352.89, 3,529.05 and 621.65 is: 932.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,352.89 : 3,529.05 = 621.65 : x
  2. Step 2: Convert to fraction form
    2,352.89/3,529.05 = 621.65/x
  3. Step 3: Cross multiply
    2,352.89x = 3,529.05 × 621.65
  4. Step 4: Simplify right side
    2,352.89x = 2,193,816.29
  5. Step 5: Solve for x
    x = 2,193,816.29/2,352.89
  6. Step 6: Final answer
    x = 932.39

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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.