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Finding the Fourth Proportional to 1,575.66, 2,363.50 and 480.02

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Solution

The fourth proportional to 1,575.66, 2,363.50 and 480.02 is: 720.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.66 : 2,363.50 = 480.02 : x
  2. Step 2: Convert to fraction form
    1,575.66/2,363.50 = 480.02/x
  3. Step 3: Cross multiply
    1,575.66x = 2,363.50 × 480.02
  4. Step 4: Simplify right side
    1,575.66x = 1,134,514.25
  5. Step 5: Solve for x
    x = 1,134,514.25/1,575.66
  6. Step 6: Final answer
    x = 720.02

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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.