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Finding the Fourth Proportional to 1,156.64, 1,596.88 and 846.88

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Solution

The fourth proportional to 1,156.64, 1,596.88 and 846.88 is: 1,169.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156.64 : 1,596.88 = 846.88 : x
  2. Step 2: Convert to fraction form
    1,156.64/1,596.88 = 846.88/x
  3. Step 3: Cross multiply
    1,156.64x = 1,596.88 × 846.88
  4. Step 4: Simplify right side
    1,156.64x = 1,352,365.73
  5. Step 5: Solve for x
    x = 1,352,365.73/1,156.64
  6. Step 6: Final answer
    x = 1,169.22

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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.