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Finding the Fourth Proportional to 1,049.64, 1,573.60 and 529.36

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Solution

The fourth proportional to 1,049.64, 1,573.60 and 529.36 is: 793.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.64 : 1,573.60 = 529.36 : x
  2. Step 2: Convert to fraction form
    1,049.64/1,573.60 = 529.36/x
  3. Step 3: Cross multiply
    1,049.64x = 1,573.60 × 529.36
  4. Step 4: Simplify right side
    1,049.64x = 833,000.90
  5. Step 5: Solve for x
    x = 833,000.90/1,049.64
  6. Step 6: Final answer
    x = 793.61

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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.