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Finding the Fourth Proportional to 1,551.76, 2,325.90 and 564.16

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Solution

The fourth proportional to 1,551.76, 2,325.90 and 564.16 is: 845.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.76 : 2,325.90 = 564.16 : x
  2. Step 2: Convert to fraction form
    1,551.76/2,325.90 = 564.16/x
  3. Step 3: Cross multiply
    1,551.76x = 2,325.90 × 564.16
  4. Step 4: Simplify right side
    1,551.76x = 1,312,179.74
  5. Step 5: Solve for x
    x = 1,312,179.74/1,551.76
  6. Step 6: Final answer
    x = 845.61

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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.