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Finding the Third Proportional to 591,931 and 1,278,445

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Solution

The third proportional to 591,931 and 1,278,445 is: 2,761,169.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,931 : 1,278,445 = 1,278,445 : x
  2. Step 2: Convert to fraction form
    591,931/1,278,445 = 1,278,445/x
  3. Step 3: Cross multiply
    591,931x = 1,278,445 × 1,278,445
  4. Step 4: Simplify right side
    591,931x = 1,634,421,618,025
  5. Step 5: Solve for x
    x = 1,634,421,618,025/591,931
  6. Step 6: Final answer
    x = 2,761,169.15

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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.