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Finding the Fourth Proportional to 808,517,746.60, 1,212,776,619.90 and 801,715,301.80

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Solution

The fourth proportional to 808,517,746.60, 1,212,776,619.90 and 801,715,301.80 is: 1,202,572,952.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,517,746.60 : 1,212,776,619.90 = 801,715,301.80 : x
  2. Step 2: Convert to fraction form
    808,517,746.60/1,212,776,619.90 = 801,715,301.80/x
  3. Step 3: Cross multiply
    808,517,746.60x = 1,212,776,619.90 × 801,715,301.80
  4. Step 4: Simplify right side
    808,517,746.60x = 972,301,573,839,112,448
  5. Step 5: Solve for x
    x = 972,301,573,839,112,448/808,517,746.60
  6. Step 6: Final answer
    x = 1,202,572,952.70

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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.