Home / 708,590,072.70-1,062,885,109.05-648,324,663.30

Finding the Fourth Proportional to 708,590,072.70, 1,062,885,109.05 and 648,324,663.30

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Solution

The fourth proportional to 708,590,072.70, 1,062,885,109.05 and 648,324,663.30 is: 972,486,994.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,590,072.70 : 1,062,885,109.05 = 648,324,663.30 : x
  2. Step 2: Convert to fraction form
    708,590,072.70/1,062,885,109.05 = 648,324,663.30/x
  3. Step 3: Cross multiply
    708,590,072.70x = 1,062,885,109.05 × 648,324,663.30
  4. Step 4: Simplify right side
    708,590,072.70x = 689,094,630,451,424,896
  5. Step 5: Solve for x
    x = 689,094,630,451,424,896/708,590,072.70
  6. Step 6: Final answer
    x = 972,486,994.95

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Double scale
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Similar ratio
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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.