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Finding the Fourth Proportional to 2,339.55, 3,509.91 and 1,040.67

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Solution

The fourth proportional to 2,339.55, 3,509.91 and 1,040.67 is: 1,561.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,339.55 : 3,509.91 = 1,040.67 : x
  2. Step 2: Convert to fraction form
    2,339.55/3,509.91 = 1,040.67/x
  3. Step 3: Cross multiply
    2,339.55x = 3,509.91 × 1,040.67
  4. Step 4: Simplify right side
    2,339.55x = 3,652,658.04
  5. Step 5: Solve for x
    x = 3,652,658.04/2,339.55
  6. Step 6: Final answer
    x = 1,561.27

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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.