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Finding the Fourth Proportional to 1,062.90, 1,595.61 and 846.63

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Solution

The fourth proportional to 1,062.90, 1,595.61 and 846.63 is: 1,270.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.90 : 1,595.61 = 846.63 : x
  2. Step 2: Convert to fraction form
    1,062.90/1,595.61 = 846.63/x
  3. Step 3: Cross multiply
    1,062.90x = 1,595.61 × 846.63
  4. Step 4: Simplify right side
    1,062.90x = 1,350,891.29
  5. Step 5: Solve for x
    x = 1,350,891.29/1,062.90
  6. Step 6: Final answer
    x = 1,270.95

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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.