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Finding the Fourth Proportional to 995.00, 1,492.50 and 336.75

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Solution

The fourth proportional to 995.00, 1,492.50 and 336.75 is: 505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.00 : 1,492.50 = 336.75 : x
  2. Step 2: Convert to fraction form
    995.00/1,492.50 = 336.75/x
  3. Step 3: Cross multiply
    995.00x = 1,492.50 × 336.75
  4. Step 4: Simplify right side
    995.00x = 502,599.38
  5. Step 5: Solve for x
    x = 502,599.38/995.00
  6. Step 6: Final answer
    x = 505.13

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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.