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Finding the Fourth Proportional to 3,595.76, 5,393.48 and 998.64

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Solution

The fourth proportional to 3,595.76, 5,393.48 and 998.64 is: 1,497.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,595.76 : 5,393.48 = 998.64 : x
  2. Step 2: Convert to fraction form
    3,595.76/5,393.48 = 998.64/x
  3. Step 3: Cross multiply
    3,595.76x = 5,393.48 × 998.64
  4. Step 4: Simplify right side
    3,595.76x = 5,386,144.87
  5. Step 5: Solve for x
    x = 5,386,144.87/3,595.76
  6. Step 6: Final answer
    x = 1,497.92

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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.