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Finding the Fourth Proportional to 1,076.14, 1,485.01 and 603.96

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Solution

The fourth proportional to 1,076.14, 1,485.01 and 603.96 is: 833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076.14 : 1,485.01 = 603.96 : x
  2. Step 2: Convert to fraction form
    1,076.14/1,485.01 = 603.96/x
  3. Step 3: Cross multiply
    1,076.14x = 1,485.01 × 603.96
  4. Step 4: Simplify right side
    1,076.14x = 896,877.70
  5. Step 5: Solve for x
    x = 896,877.70/1,076.14
  6. Step 6: Final answer
    x = 833.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.