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Finding the Fourth Proportional to 926.42, 1,279.32 and 595.62

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Solution

The fourth proportional to 926.42, 1,279.32 and 595.62 is: 822.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    926.42 : 1,279.32 = 595.62 : x
  2. Step 2: Convert to fraction form
    926.42/1,279.32 = 595.62/x
  3. Step 3: Cross multiply
    926.42x = 1,279.32 × 595.62
  4. Step 4: Simplify right side
    926.42x = 761,988.58
  5. Step 5: Solve for x
    x = 761,988.58/926.42
  6. Step 6: Final answer
    x = 822.51

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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.