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Finding the Third Proportional to 397,688,168 and 864,214,582

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Solution

The third proportional to 397,688,168 and 864,214,582 is: 1,878,021,283.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,688,168 : 864,214,582 = 864,214,582 : x
  2. Step 2: Convert to fraction form
    397,688,168/864,214,582 = 864,214,582/x
  3. Step 3: Cross multiply
    397,688,168x = 864,214,582 × 864,214,582
  4. Step 4: Simplify right side
    397,688,168x = 746,866,843,741,434,752
  5. Step 5: Solve for x
    x = 746,866,843,741,434,752/397,688,168
  6. Step 6: Final answer
    x = 1,878,021,283.60

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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.