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Finding the Fourth Proportional to 1,133.49, 1,700.49 and 517.03

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Solution

The fourth proportional to 1,133.49, 1,700.49 and 517.03 is: 775.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.49 : 1,700.49 = 517.03 : x
  2. Step 2: Convert to fraction form
    1,133.49/1,700.49 = 517.03/x
  3. Step 3: Cross multiply
    1,133.49x = 1,700.49 × 517.03
  4. Step 4: Simplify right side
    1,133.49x = 879,204.34
  5. Step 5: Solve for x
    x = 879,204.34/1,133.49
  6. Step 6: Final answer
    x = 775.66

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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.