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Finding the Third Proportional to 687,899,443,953.75 and 1,496,573,497,779.80

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Solution

The third proportional to 687,899,443,953.75 and 1,496,573,497,779.80 is: 3,255,900,631,906.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,899,443,953.75 : 1,496,573,497,779.80 = 1,496,573,497,779.80 : x
  2. Step 2: Convert to fraction form
    687,899,443,953.75/1,496,573,497,779.80 = 1,496,573,497,779.80/x
  3. Step 3: Cross multiply
    687,899,443,953.75x = 1,496,573,497,779.80 × 1,496,573,497,779.80
  4. Step 4: Simplify right side
    687,899,443,953.75x = 2,239,732,234,256,865,204,109,312
  5. Step 5: Solve for x
    x = 2,239,732,234,256,865,204,109,312/687,899,443,953.75
  6. Step 6: Final answer
    x = 3,255,900,631,906.09

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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.