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Finding the Fourth Proportional to 924.22, 1,275.74 and 551.32

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Solution

The fourth proportional to 924.22, 1,275.74 and 551.32 is: 761.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.22 : 1,275.74 = 551.32 : x
  2. Step 2: Convert to fraction form
    924.22/1,275.74 = 551.32/x
  3. Step 3: Cross multiply
    924.22x = 1,275.74 × 551.32
  4. Step 4: Simplify right side
    924.22x = 703,340.98
  5. Step 5: Solve for x
    x = 703,340.98/924.22
  6. Step 6: Final answer
    x = 761.01

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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.