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Finding the Third Proportional to 317,536.50 and 684,930

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Solution

The third proportional to 317,536.50 and 684,930 is: 1,477,402.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,536.50 : 684,930 = 684,930 : x
  2. Step 2: Convert to fraction form
    317,536.50/684,930 = 684,930/x
  3. Step 3: Cross multiply
    317,536.50x = 684,930 × 684,930
  4. Step 4: Simplify right side
    317,536.50x = 469,129,104,900
  5. Step 5: Solve for x
    x = 469,129,104,900/317,536.50
  6. Step 6: Final answer
    x = 1,477,402.14

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.