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Finding the Fourth Proportional to 2,369.64, 3,555.12 and 726.24

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Solution

The fourth proportional to 2,369.64, 3,555.12 and 726.24 is: 1,089.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,369.64 : 3,555.12 = 726.24 : x
  2. Step 2: Convert to fraction form
    2,369.64/3,555.12 = 726.24/x
  3. Step 3: Cross multiply
    2,369.64x = 3,555.12 × 726.24
  4. Step 4: Simplify right side
    2,369.64x = 2,581,870.35
  5. Step 5: Solve for x
    x = 2,581,870.35/2,369.64
  6. Step 6: Final answer
    x = 1,089.56

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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.