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Finding the Third Proportional to 717,853,470 and 1,558,221,315

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Solution

The third proportional to 717,853,470 and 1,558,221,315 is: 3,382,380,622.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,853,470 : 1,558,221,315 = 1,558,221,315 : x
  2. Step 2: Convert to fraction form
    717,853,470/1,558,221,315 = 1,558,221,315/x
  3. Step 3: Cross multiply
    717,853,470x = 1,558,221,315 × 1,558,221,315
  4. Step 4: Simplify right side
    717,853,470x = 2,428,053,666,520,329,216
  5. Step 5: Solve for x
    x = 2,428,053,666,520,329,216/717,853,470
  6. Step 6: Final answer
    x = 3,382,380,622.22

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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.