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Finding the Fourth Proportional to 994.44, 1,492.00 and 507.36

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Solution

The fourth proportional to 994.44, 1,492.00 and 507.36 is: 761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.44 : 1,492.00 = 507.36 : x
  2. Step 2: Convert to fraction form
    994.44/1,492.00 = 507.36/x
  3. Step 3: Cross multiply
    994.44x = 1,492.00 × 507.36
  4. Step 4: Simplify right side
    994.44x = 756,979.85
  5. Step 5: Solve for x
    x = 756,979.85/994.44
  6. Step 6: Final answer
    x = 761.21

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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.