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Finding the Fourth Proportional to 1,483.14, 2,046.99 and 885.66

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Solution

The fourth proportional to 1,483.14, 2,046.99 and 885.66 is: 1,222.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,483.14 : 2,046.99 = 885.66 : x
  2. Step 2: Convert to fraction form
    1,483.14/2,046.99 = 885.66/x
  3. Step 3: Cross multiply
    1,483.14x = 2,046.99 × 885.66
  4. Step 4: Simplify right side
    1,483.14x = 1,812,937.16
  5. Step 5: Solve for x
    x = 1,812,937.16/1,483.14
  6. Step 6: Final answer
    x = 1,222.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.