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Finding the Fourth Proportional to 413,835,345.20, 620,753,017.80 and 367,253,994.80

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Solution

The fourth proportional to 413,835,345.20, 620,753,017.80 and 367,253,994.80 is: 550,880,992.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,835,345.20 : 620,753,017.80 = 367,253,994.80 : x
  2. Step 2: Convert to fraction form
    413,835,345.20/620,753,017.80 = 367,253,994.80/x
  3. Step 3: Cross multiply
    413,835,345.20x = 620,753,017.80 × 367,253,994.80
  4. Step 4: Simplify right side
    413,835,345.20x = 227,974,025,571,205,504
  5. Step 5: Solve for x
    x = 227,974,025,571,205,504/413,835,345.20
  6. Step 6: Final answer
    x = 550,880,992.20

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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.