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Finding the Fourth Proportional to 1,052.83, 1,579.26 and 322.42

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Solution

The fourth proportional to 1,052.83, 1,579.26 and 322.42 is: 483.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052.83 : 1,579.26 = 322.42 : x
  2. Step 2: Convert to fraction form
    1,052.83/1,579.26 = 322.42/x
  3. Step 3: Cross multiply
    1,052.83x = 1,579.26 × 322.42
  4. Step 4: Simplify right side
    1,052.83x = 509,185.01
  5. Step 5: Solve for x
    x = 509,185.01/1,052.83
  6. Step 6: Final answer
    x = 483.63

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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.