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Finding the Fourth Proportional to 1,044.64, 1,439.52 and 848.32

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Solution

The fourth proportional to 1,044.64, 1,439.52 and 848.32 is: 1,168.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.64 : 1,439.52 = 848.32 : x
  2. Step 2: Convert to fraction form
    1,044.64/1,439.52 = 848.32/x
  3. Step 3: Cross multiply
    1,044.64x = 1,439.52 × 848.32
  4. Step 4: Simplify right side
    1,044.64x = 1,221,173.61
  5. Step 5: Solve for x
    x = 1,221,173.61/1,044.64
  6. Step 6: Final answer
    x = 1,168.99

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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.