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Finding the Fourth Proportional to 808,848,015.20, 1,213,272,023.52 and 808,848,015.20

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Solution

The fourth proportional to 808,848,015.20, 1,213,272,023.52 and 808,848,015.20 is: 1,213,272,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,848,015.20 : 1,213,272,023.52 = 808,848,015.20 : x
  2. Step 2: Convert to fraction form
    808,848,015.20/1,213,272,023.52 = 808,848,015.20/x
  3. Step 3: Cross multiply
    808,848,015.20x = 1,213,272,023.52 × 808,848,015.20
  4. Step 4: Simplify right side
    808,848,015.20x = 981,352,668,121,839,744
  5. Step 5: Solve for x
    x = 981,352,668,121,839,744/808,848,015.20
  6. Step 6: Final answer
    x = 1,213,272,023.52

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1.5x scale

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.