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Finding the Third Proportional to 679,565,821.50 and 1,048,436,611.88

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Solution

The third proportional to 679,565,821.50 and 1,048,436,611.88 is: 1,617,531,803.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,565,821.50 : 1,048,436,611.88 = 1,048,436,611.88 : x
  2. Step 2: Convert to fraction form
    679,565,821.50/1,048,436,611.88 = 1,048,436,611.88/x
  3. Step 3: Cross multiply
    679,565,821.50x = 1,048,436,611.88 × 1,048,436,611.88
  4. Step 4: Simplify right side
    679,565,821.50x = 1,099,219,329,119,929,344
  5. Step 5: Solve for x
    x = 1,099,219,329,119,929,344/679,565,821.50
  6. Step 6: Final answer
    x = 1,617,531,803.90

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.