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Finding the Fourth Proportional to 3,065.32, 4,597.98 and 874.18

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Solution

The fourth proportional to 3,065.32, 4,597.98 and 874.18 is: 1,311.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.32 : 4,597.98 = 874.18 : x
  2. Step 2: Convert to fraction form
    3,065.32/4,597.98 = 874.18/x
  3. Step 3: Cross multiply
    3,065.32x = 4,597.98 × 874.18
  4. Step 4: Simplify right side
    3,065.32x = 4,019,462.16
  5. Step 5: Solve for x
    x = 4,019,462.16/3,065.32
  6. Step 6: Final answer
    x = 1,311.27

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Similar ratio
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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.