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Finding the Third Proportional to 315,312 and 476,244

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Solution

The third proportional to 315,312 and 476,244 is: 719,314.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,312 : 476,244 = 476,244 : x
  2. Step 2: Convert to fraction form
    315,312/476,244 = 476,244/x
  3. Step 3: Cross multiply
    315,312x = 476,244 × 476,244
  4. Step 4: Simplify right side
    315,312x = 226,808,347,536
  5. Step 5: Solve for x
    x = 226,808,347,536/315,312
  6. Step 6: Final answer
    x = 719,314.04

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.