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Finding the Fourth Proportional to 995.08, 1,492.56 and 475.45

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Solution

The fourth proportional to 995.08, 1,492.56 and 475.45 is: 713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.08 : 1,492.56 = 475.45 : x
  2. Step 2: Convert to fraction form
    995.08/1,492.56 = 475.45/x
  3. Step 3: Cross multiply
    995.08x = 1,492.56 × 475.45
  4. Step 4: Simplify right side
    995.08x = 709,633.92
  5. Step 5: Solve for x
    x = 709,633.92/995.08
  6. Step 6: Final answer
    x = 713.14

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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.