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Finding the Fourth Proportional to 924.82, 1,385.98 and 534.94

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Solution

The fourth proportional to 924.82, 1,385.98 and 534.94 is: 801.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.82 : 1,385.98 = 534.94 : x
  2. Step 2: Convert to fraction form
    924.82/1,385.98 = 534.94/x
  3. Step 3: Cross multiply
    924.82x = 1,385.98 × 534.94
  4. Step 4: Simplify right side
    924.82x = 741,411.34
  5. Step 5: Solve for x
    x = 741,411.34/924.82
  6. Step 6: Final answer
    x = 801.68

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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.