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Finding the Fourth Proportional to 3,595.86, 5,394.16 and 998.80

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Solution

The fourth proportional to 3,595.86, 5,394.16 and 998.80 is: 1,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,595.86 : 5,394.16 = 998.80 : x
  2. Step 2: Convert to fraction form
    3,595.86/5,394.16 = 998.80/x
  3. Step 3: Cross multiply
    3,595.86x = 5,394.16 × 998.80
  4. Step 4: Simplify right side
    3,595.86x = 5,387,687.01
  5. Step 5: Solve for x
    x = 5,387,687.01/3,595.86
  6. Step 6: Final answer
    x = 1,498.30

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1.5x scale

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.