Home / 521,540,453.76-719,731,554.24-286,591,175.04

Finding the Fourth Proportional to 521,540,453.76, 719,731,554.24 and 286,591,175.04

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Solution

The fourth proportional to 521,540,453.76, 719,731,554.24 and 286,591,175.04 is: 395,498,969.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,540,453.76 : 719,731,554.24 = 286,591,175.04 : x
  2. Step 2: Convert to fraction form
    521,540,453.76/719,731,554.24 = 286,591,175.04/x
  3. Step 3: Cross multiply
    521,540,453.76x = 719,731,554.24 × 286,591,175.04
  4. Step 4: Simplify right side
    521,540,453.76x = 206,268,711,843,007,104
  5. Step 5: Solve for x
    x = 206,268,711,843,007,104/521,540,453.76
  6. Step 6: Final answer
    x = 395,498,969.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.