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Finding the Third Proportional to 372,109,687 and 554,536,299

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Solution

The third proportional to 372,109,687 and 554,536,299 is: 826,397,478.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,109,687 : 554,536,299 = 554,536,299 : x
  2. Step 2: Convert to fraction form
    372,109,687/554,536,299 = 554,536,299/x
  3. Step 3: Cross multiply
    372,109,687x = 554,536,299 × 554,536,299
  4. Step 4: Simplify right side
    372,109,687x = 307,510,506,908,617,408
  5. Step 5: Solve for x
    x = 307,510,506,908,617,408/372,109,687
  6. Step 6: Final answer
    x = 826,397,478.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.