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Finding the Fourth Proportional to 1,095.26, 1,511.15 and 652.86

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Solution

The fourth proportional to 1,095.26, 1,511.15 and 652.86 is: 900.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095.26 : 1,511.15 = 652.86 : x
  2. Step 2: Convert to fraction form
    1,095.26/1,511.15 = 652.86/x
  3. Step 3: Cross multiply
    1,095.26x = 1,511.15 × 652.86
  4. Step 4: Simplify right side
    1,095.26x = 986,566.12
  5. Step 5: Solve for x
    x = 986,566.12/1,095.26
  6. Step 6: Final answer
    x = 900.76

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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.