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Finding the Fourth Proportional to 3,596.40, 5,394.56 and 999.12

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Solution

The fourth proportional to 3,596.40, 5,394.56 and 999.12 is: 1,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,596.40 : 5,394.56 = 999.12 : x
  2. Step 2: Convert to fraction form
    3,596.40/5,394.56 = 999.12/x
  3. Step 3: Cross multiply
    3,596.40x = 5,394.56 × 999.12
  4. Step 4: Simplify right side
    3,596.40x = 5,389,812.79
  5. Step 5: Solve for x
    x = 5,389,812.79/3,596.40
  6. Step 6: Final answer
    x = 1,498.67

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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.