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Finding the Third Proportional to 293,360,076 and 621,689,688

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Solution

The third proportional to 293,360,076 and 621,689,688 is: 1,317,486,937.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,360,076 : 621,689,688 = 621,689,688 : x
  2. Step 2: Convert to fraction form
    293,360,076/621,689,688 = 621,689,688/x
  3. Step 3: Cross multiply
    293,360,076x = 621,689,688 × 621,689,688
  4. Step 4: Simplify right side
    293,360,076x = 386,498,068,165,537,344
  5. Step 5: Solve for x
    x = 386,498,068,165,537,344/293,360,076
  6. Step 6: Final answer
    x = 1,317,486,937.68

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.