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Finding the Fourth Proportional to 924.56, 1,275.88 and 504.91

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Solution

The fourth proportional to 924.56, 1,275.88 and 504.91 is: 696.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.56 : 1,275.88 = 504.91 : x
  2. Step 2: Convert to fraction form
    924.56/1,275.88 = 504.91/x
  3. Step 3: Cross multiply
    924.56x = 1,275.88 × 504.91
  4. Step 4: Simplify right side
    924.56x = 644,196.78
  5. Step 5: Solve for x
    x = 644,196.78/924.56
  6. Step 6: Final answer
    x = 696.76

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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.