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Finding the Third Proportional to 374.63 and 492.33

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Solution

The third proportional to 374.63 and 492.33 is: 647.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.63 : 492.33 = 492.33 : x
  2. Step 2: Convert to fraction form
    374.63/492.33 = 492.33/x
  3. Step 3: Cross multiply
    374.63x = 492.33 × 492.33
  4. Step 4: Simplify right side
    374.63x = 242,386.98
  5. Step 5: Solve for x
    x = 242,386.98/374.63
  6. Step 6: Final answer
    x = 647.01

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.