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Finding the Fourth Proportional to 708,594,072.30, 1,062,891,108.45 and 682,766,039.70

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Solution

The fourth proportional to 708,594,072.30, 1,062,891,108.45 and 682,766,039.70 is: 1,024,149,059.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,594,072.30 : 1,062,891,108.45 = 682,766,039.70 : x
  2. Step 2: Convert to fraction form
    708,594,072.30/1,062,891,108.45 = 682,766,039.70/x
  3. Step 3: Cross multiply
    708,594,072.30x = 1,062,891,108.45 × 682,766,039.70
  4. Step 4: Simplify right side
    708,594,072.30x = 725,705,952,748,749,824
  5. Step 5: Solve for x
    x = 725,705,952,748,749,824/708,594,072.30
  6. Step 6: Final answer
    x = 1,024,149,059.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.