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Finding the Fourth Proportional to 1,141.76, 1,713.18 and 564.50

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Solution

The fourth proportional to 1,141.76, 1,713.18 and 564.50 is: 847.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141.76 : 1,713.18 = 564.50 : x
  2. Step 2: Convert to fraction form
    1,141.76/1,713.18 = 564.50/x
  3. Step 3: Cross multiply
    1,141.76x = 1,713.18 × 564.50
  4. Step 4: Simplify right side
    1,141.76x = 967,090.11
  5. Step 5: Solve for x
    x = 967,090.11/1,141.76
  6. Step 6: Final answer
    x = 847.02

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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.