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Finding the Third Proportional to 687,899,443,989.40 and 1,496,573,497,848.40

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Solution

The third proportional to 687,899,443,989.40 and 1,496,573,497,848.40 is: 3,255,900,632,035.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,899,443,989.40 : 1,496,573,497,848.40 = 1,496,573,497,848.40 : x
  2. Step 2: Convert to fraction form
    687,899,443,989.40/1,496,573,497,848.40 = 1,496,573,497,848.40/x
  3. Step 3: Cross multiply
    687,899,443,989.40x = 1,496,573,497,848.40 × 1,496,573,497,848.40
  4. Step 4: Simplify right side
    687,899,443,989.40x = 2,239,732,234,462,194,705,629,184
  5. Step 5: Solve for x
    x = 2,239,732,234,462,194,705,629,184/687,899,443,989.40
  6. Step 6: Final answer
    x = 3,255,900,632,035.85

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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.