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Finding the Fourth Proportional to 934.84, 1,400.58 and 752.32

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Solution

The fourth proportional to 934.84, 1,400.58 and 752.32 is: 1,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.84 : 1,400.58 = 752.32 : x
  2. Step 2: Convert to fraction form
    934.84/1,400.58 = 752.32/x
  3. Step 3: Cross multiply
    934.84x = 1,400.58 × 752.32
  4. Step 4: Simplify right side
    934.84x = 1,053,684.35
  5. Step 5: Solve for x
    x = 1,053,684.35/934.84
  6. Step 6: Final answer
    x = 1,127.13

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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.