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Finding the Fourth Proportional to 709,126,752.72, 971,499,115.68 and 682,608,755.64

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Solution

The fourth proportional to 709,126,752.72, 971,499,115.68 and 682,608,755.64 is: 935,169,629.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,126,752.72 : 971,499,115.68 = 682,608,755.64 : x
  2. Step 2: Convert to fraction form
    709,126,752.72/971,499,115.68 = 682,608,755.64/x
  3. Step 3: Cross multiply
    709,126,752.72x = 971,499,115.68 × 682,608,755.64
  4. Step 4: Simplify right side
    709,126,752.72x = 663,153,802,459,685,120
  5. Step 5: Solve for x
    x = 663,153,802,459,685,120/709,126,752.72
  6. Step 6: Final answer
    x = 935,169,629.29

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.