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Finding the Fourth Proportional to 808,848,010.70, 1,213,272,016.77 and 808,848,010.70

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Solution

The fourth proportional to 808,848,010.70, 1,213,272,016.77 and 808,848,010.70 is: 1,213,272,016.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,848,010.70 : 1,213,272,016.77 = 808,848,010.70 : x
  2. Step 2: Convert to fraction form
    808,848,010.70/1,213,272,016.77 = 808,848,010.70/x
  3. Step 3: Cross multiply
    808,848,010.70x = 1,213,272,016.77 × 808,848,010.70
  4. Step 4: Simplify right side
    808,848,010.70x = 981,352,657,202,391,552
  5. Step 5: Solve for x
    x = 981,352,657,202,391,552/808,848,010.70
  6. Step 6: Final answer
    x = 1,213,272,016.77

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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.