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Finding the Fourth Proportional to 1,133.72, 1,700.64 and 364.28

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Solution

The fourth proportional to 1,133.72, 1,700.64 and 364.28 is: 546.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.72 : 1,700.64 = 364.28 : x
  2. Step 2: Convert to fraction form
    1,133.72/1,700.64 = 364.28/x
  3. Step 3: Cross multiply
    1,133.72x = 1,700.64 × 364.28
  4. Step 4: Simplify right side
    1,133.72x = 619,509.14
  5. Step 5: Solve for x
    x = 619,509.14/1,133.72
  6. Step 6: Final answer
    x = 546.44

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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.