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Finding the Third Proportional to 272,898,872 and 445,572,084

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Solution

The third proportional to 272,898,872 and 445,572,084 is: 727,502,025.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,898,872 : 445,572,084 = 445,572,084 : x
  2. Step 2: Convert to fraction form
    272,898,872/445,572,084 = 445,572,084/x
  3. Step 3: Cross multiply
    272,898,872x = 445,572,084 × 445,572,084
  4. Step 4: Simplify right side
    272,898,872x = 198,534,482,040,103,040
  5. Step 5: Solve for x
    x = 198,534,482,040,103,040/272,898,872
  6. Step 6: Final answer
    x = 727,502,025.15

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.