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Finding the Fourth Proportional to 995.05, 1,373.10 and 552.94

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Solution

The fourth proportional to 995.05, 1,373.10 and 552.94 is: 763.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.05 : 1,373.10 = 552.94 : x
  2. Step 2: Convert to fraction form
    995.05/1,373.10 = 552.94/x
  3. Step 3: Cross multiply
    995.05x = 1,373.10 × 552.94
  4. Step 4: Simplify right side
    995.05x = 759,235.05
  5. Step 5: Solve for x
    x = 759,235.05/995.05
  6. Step 6: Final answer
    x = 763.02

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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.