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Finding the Fourth Proportional to 715.01, 1,072.44 and 202.01

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Solution

The fourth proportional to 715.01, 1,072.44 and 202.01 is: 302.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    715.01 : 1,072.44 = 202.01 : x
  2. Step 2: Convert to fraction form
    715.01/1,072.44 = 202.01/x
  3. Step 3: Cross multiply
    715.01x = 1,072.44 × 202.01
  4. Step 4: Simplify right side
    715.01x = 216,638.24
  5. Step 5: Solve for x
    x = 216,638.24/715.01
  6. Step 6: Final answer
    x = 302.99

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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.