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Finding the Fourth Proportional to 1,607.64, 2,411.20 and 568.42

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Solution

The fourth proportional to 1,607.64, 2,411.20 and 568.42 is: 852.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.64 : 2,411.20 = 568.42 : x
  2. Step 2: Convert to fraction form
    1,607.64/2,411.20 = 568.42/x
  3. Step 3: Cross multiply
    1,607.64x = 2,411.20 × 568.42
  4. Step 4: Simplify right side
    1,607.64x = 1,370,574.30
  5. Step 5: Solve for x
    x = 1,370,574.30/1,607.64
  6. Step 6: Final answer
    x = 852.54

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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.