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Finding the Fourth Proportional to 929.67, 1,282.34 and 597.57

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Solution

The fourth proportional to 929.67, 1,282.34 and 597.57 is: 824.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    929.67 : 1,282.34 = 597.57 : x
  2. Step 2: Convert to fraction form
    929.67/1,282.34 = 597.57/x
  3. Step 3: Cross multiply
    929.67x = 1,282.34 × 597.57
  4. Step 4: Simplify right side
    929.67x = 766,284.93
  5. Step 5: Solve for x
    x = 766,284.93/929.67
  6. Step 6: Final answer
    x = 824.25

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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.