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Finding the Fourth Proportional to 924.61, 1,276.01 and 531.64

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Solution

The fourth proportional to 924.61, 1,276.01 and 531.64 is: 733.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.61 : 1,276.01 = 531.64 : x
  2. Step 2: Convert to fraction form
    924.61/1,276.01 = 531.64/x
  3. Step 3: Cross multiply
    924.61x = 1,276.01 × 531.64
  4. Step 4: Simplify right side
    924.61x = 678,377.96
  5. Step 5: Solve for x
    x = 678,377.96/924.61
  6. Step 6: Final answer
    x = 733.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.