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Finding the Third Proportional to 287,884,976 and 626,884,190

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Solution

The third proportional to 287,884,976 and 626,884,190 is: 1,365,072,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,884,976 : 626,884,190 = 626,884,190 : x
  2. Step 2: Convert to fraction form
    287,884,976/626,884,190 = 626,884,190/x
  3. Step 3: Cross multiply
    287,884,976x = 626,884,190 × 626,884,190
  4. Step 4: Simplify right side
    287,884,976x = 392,983,787,671,956,096
  5. Step 5: Solve for x
    x = 392,983,787,671,956,096/287,884,976
  6. Step 6: Final answer
    x = 1,365,072,235.21

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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.