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Finding the Fourth Proportional to 1,595.99, 2,203.52 and 999.38

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Solution

The fourth proportional to 1,595.99, 2,203.52 and 999.38 is: 1,379.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,595.99 : 2,203.52 = 999.38 : x
  2. Step 2: Convert to fraction form
    1,595.99/2,203.52 = 999.38/x
  3. Step 3: Cross multiply
    1,595.99x = 2,203.52 × 999.38
  4. Step 4: Simplify right side
    1,595.99x = 2,202,153.82
  5. Step 5: Solve for x
    x = 2,202,153.82/1,595.99
  6. Step 6: Final answer
    x = 1,379.80

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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.