Home / 419,906,059.20-629,859,088.80-317,869,387.20

Finding the Fourth Proportional to 419,906,059.20, 629,859,088.80 and 317,869,387.20

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Solution

The fourth proportional to 419,906,059.20, 629,859,088.80 and 317,869,387.20 is: 476,804,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,906,059.20 : 629,859,088.80 = 317,869,387.20 : x
  2. Step 2: Convert to fraction form
    419,906,059.20/629,859,088.80 = 317,869,387.20/x
  3. Step 3: Cross multiply
    419,906,059.20x = 629,859,088.80 × 317,869,387.20
  4. Step 4: Simplify right side
    419,906,059.20x = 200,212,922,579,206,368
  5. Step 5: Solve for x
    x = 200,212,922,579,206,368/419,906,059.20
  6. Step 6: Final answer
    x = 476,804,080.80

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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.