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Finding the Fourth Proportional to 3,573.66, 5,359.68 and 976.80

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Solution

The fourth proportional to 3,573.66, 5,359.68 and 976.80 is: 1,464.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,573.66 : 5,359.68 = 976.80 : x
  2. Step 2: Convert to fraction form
    3,573.66/5,359.68 = 976.80/x
  3. Step 3: Cross multiply
    3,573.66x = 5,359.68 × 976.80
  4. Step 4: Simplify right side
    3,573.66x = 5,235,335.42
  5. Step 5: Solve for x
    x = 5,235,335.42/3,573.66
  6. Step 6: Final answer
    x = 1,464.98

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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.