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Finding the Fourth Proportional to 1,583.13, 2,184.74 and 884.50

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Solution

The fourth proportional to 1,583.13, 2,184.74 and 884.50 is: 1,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583.13 : 2,184.74 = 884.50 : x
  2. Step 2: Convert to fraction form
    1,583.13/2,184.74 = 884.50/x
  3. Step 3: Cross multiply
    1,583.13x = 2,184.74 × 884.50
  4. Step 4: Simplify right side
    1,583.13x = 1,932,402.53
  5. Step 5: Solve for x
    x = 1,932,402.53/1,583.13
  6. Step 6: Final answer
    x = 1,220.62

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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.