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Finding the Fourth Proportional to 1,483.84, 2,225.91 and 443.67

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Solution

The fourth proportional to 1,483.84, 2,225.91 and 443.67 is: 665.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,483.84 : 2,225.91 = 443.67 : x
  2. Step 2: Convert to fraction form
    1,483.84/2,225.91 = 443.67/x
  3. Step 3: Cross multiply
    1,483.84x = 2,225.91 × 443.67
  4. Step 4: Simplify right side
    1,483.84x = 987,562.81
  5. Step 5: Solve for x
    x = 987,562.81/1,483.84
  6. Step 6: Final answer
    x = 665.54

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Double scale
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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.