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Finding the Third Proportional to 417,518 and 909,532

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Solution

The third proportional to 417,518 and 909,532 is: 1,981,348.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,518 : 909,532 = 909,532 : x
  2. Step 2: Convert to fraction form
    417,518/909,532 = 909,532/x
  3. Step 3: Cross multiply
    417,518x = 909,532 × 909,532
  4. Step 4: Simplify right side
    417,518x = 827,248,459,024
  5. Step 5: Solve for x
    x = 827,248,459,024/417,518
  6. Step 6: Final answer
    x = 1,981,348.01

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.