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Finding the Fourth Proportional to 1,133.56, 1,700.88 and 556.36

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Solution

The fourth proportional to 1,133.56, 1,700.88 and 556.36 is: 834.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.56 : 1,700.88 = 556.36 : x
  2. Step 2: Convert to fraction form
    1,133.56/1,700.88 = 556.36/x
  3. Step 3: Cross multiply
    1,133.56x = 1,700.88 × 556.36
  4. Step 4: Simplify right side
    1,133.56x = 946,301.60
  5. Step 5: Solve for x
    x = 946,301.60/1,133.56
  6. Step 6: Final answer
    x = 834.81

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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.