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Finding the Fourth Proportional to 3,065.47, 4,598.21 and 874.22

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Solution

The fourth proportional to 3,065.47, 4,598.21 and 874.22 is: 1,311.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.47 : 4,598.21 = 874.22 : x
  2. Step 2: Convert to fraction form
    3,065.47/4,598.21 = 874.22/x
  3. Step 3: Cross multiply
    3,065.47x = 4,598.21 × 874.22
  4. Step 4: Simplify right side
    3,065.47x = 4,019,826.34
  5. Step 5: Solve for x
    x = 4,019,826.34/3,065.47
  6. Step 6: Final answer
    x = 1,311.33

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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.