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Finding the Third Proportional to 357,839,574 and 782,677,020

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Solution

The third proportional to 357,839,574 and 782,677,020 is: 1,711,893,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,839,574 : 782,677,020 = 782,677,020 : x
  2. Step 2: Convert to fraction form
    357,839,574/782,677,020 = 782,677,020/x
  3. Step 3: Cross multiply
    357,839,574x = 782,677,020 × 782,677,020
  4. Step 4: Simplify right side
    357,839,574x = 612,583,317,636,080,384
  5. Step 5: Solve for x
    x = 612,583,317,636,080,384/357,839,574
  6. Step 6: Final answer
    x = 1,711,893,714.80

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.