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Finding the Fourth Proportional to 975.98, 1,464.53 and 360.11

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Solution

The fourth proportional to 975.98, 1,464.53 and 360.11 is: 540.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    975.98 : 1,464.53 = 360.11 : x
  2. Step 2: Convert to fraction form
    975.98/1,464.53 = 360.11/x
  3. Step 3: Cross multiply
    975.98x = 1,464.53 × 360.11
  4. Step 4: Simplify right side
    975.98x = 527,391.64
  5. Step 5: Solve for x
    x = 527,391.64/975.98
  6. Step 6: Final answer
    x = 540.37

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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.