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Finding the Fourth Proportional to 3,868.23, 5,802.33 and 946.54

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Solution

The fourth proportional to 3,868.23, 5,802.33 and 946.54 is: 1,419.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.23 : 5,802.33 = 946.54 : x
  2. Step 2: Convert to fraction form
    3,868.23/5,802.33 = 946.54/x
  3. Step 3: Cross multiply
    3,868.23x = 5,802.33 × 946.54
  4. Step 4: Simplify right side
    3,868.23x = 5,492,115.60
  5. Step 5: Solve for x
    x = 5,492,115.60/3,868.23
  6. Step 6: Final answer
    x = 1,419.80

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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.