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Finding the Third Proportional to 395,264,428 and 858,572,236

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Solution

The third proportional to 395,264,428 and 858,572,236 is: 1,864,944,660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,264,428 : 858,572,236 = 858,572,236 : x
  2. Step 2: Convert to fraction form
    395,264,428/858,572,236 = 858,572,236/x
  3. Step 3: Cross multiply
    395,264,428x = 858,572,236 × 858,572,236
  4. Step 4: Simplify right side
    395,264,428x = 737,146,284,430,039,680
  5. Step 5: Solve for x
    x = 737,146,284,430,039,680/395,264,428
  6. Step 6: Final answer
    x = 1,864,944,660.36

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.