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Finding the Third Proportional to 313,384.50 and 477,423

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Solution

The third proportional to 313,384.50 and 477,423 is: 727,326.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,384.50 : 477,423 = 477,423 : x
  2. Step 2: Convert to fraction form
    313,384.50/477,423 = 477,423/x
  3. Step 3: Cross multiply
    313,384.50x = 477,423 × 477,423
  4. Step 4: Simplify right side
    313,384.50x = 227,932,720,929
  5. Step 5: Solve for x
    x = 227,932,720,929/313,384.50
  6. Step 6: Final answer
    x = 727,326.08

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.