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Finding the Fourth Proportional to 1,393.53, 2,088.99 and 468.44

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Solution

The fourth proportional to 1,393.53, 2,088.99 and 468.44 is: 702.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393.53 : 2,088.99 = 468.44 : x
  2. Step 2: Convert to fraction form
    1,393.53/2,088.99 = 468.44/x
  3. Step 3: Cross multiply
    1,393.53x = 2,088.99 × 468.44
  4. Step 4: Simplify right side
    1,393.53x = 978,566.48
  5. Step 5: Solve for x
    x = 978,566.48/1,393.53
  6. Step 6: Final answer
    x = 702.22

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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.