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Finding the Fourth Proportional to 995.32, 1,373.47 and 547.19

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Solution

The fourth proportional to 995.32, 1,373.47 and 547.19 is: 755.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.32 : 1,373.47 = 547.19 : x
  2. Step 2: Convert to fraction form
    995.32/1,373.47 = 547.19/x
  3. Step 3: Cross multiply
    995.32x = 1,373.47 × 547.19
  4. Step 4: Simplify right side
    995.32x = 751,549.05
  5. Step 5: Solve for x
    x = 751,549.05/995.32
  6. Step 6: Final answer
    x = 755.08

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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.