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Finding the Fourth Proportional to 1,076.94, 1,615.59 and 529.06

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Solution

The fourth proportional to 1,076.94, 1,615.59 and 529.06 is: 793.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076.94 : 1,615.59 = 529.06 : x
  2. Step 2: Convert to fraction form
    1,076.94/1,615.59 = 529.06/x
  3. Step 3: Cross multiply
    1,076.94x = 1,615.59 × 529.06
  4. Step 4: Simplify right side
    1,076.94x = 854,744.05
  5. Step 5: Solve for x
    x = 854,744.05/1,076.94
  6. Step 6: Final answer
    x = 793.68

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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.