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Finding the Fourth Proportional to 1,068.26, 1,473.99 and 626.15

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Solution

The fourth proportional to 1,068.26, 1,473.99 and 626.15 is: 863.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068.26 : 1,473.99 = 626.15 : x
  2. Step 2: Convert to fraction form
    1,068.26/1,473.99 = 626.15/x
  3. Step 3: Cross multiply
    1,068.26x = 1,473.99 × 626.15
  4. Step 4: Simplify right side
    1,068.26x = 922,931.47
  5. Step 5: Solve for x
    x = 922,931.47/1,068.26
  6. Step 6: Final answer
    x = 863.96

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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.