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Finding the Fourth Proportional to 995.02, 1,373.18 and 552.93

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Solution

The fourth proportional to 995.02, 1,373.18 and 552.93 is: 763.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.02 : 1,373.18 = 552.93 : x
  2. Step 2: Convert to fraction form
    995.02/1,373.18 = 552.93/x
  3. Step 3: Cross multiply
    995.02x = 1,373.18 × 552.93
  4. Step 4: Simplify right side
    995.02x = 759,272.42
  5. Step 5: Solve for x
    x = 759,272.42/995.02
  6. Step 6: Final answer
    x = 763.07

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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.