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Finding the Fourth Proportional to 441,085,998.80, 661,628,998.20 and 441,085,998.80

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Solution

The fourth proportional to 441,085,998.80, 661,628,998.20 and 441,085,998.80 is: 661,628,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,085,998.80 : 661,628,998.20 = 441,085,998.80 : x
  2. Step 2: Convert to fraction form
    441,085,998.80/661,628,998.20 = 441,085,998.80/x
  3. Step 3: Cross multiply
    441,085,998.80x = 661,628,998.20 × 441,085,998.80
  4. Step 4: Simplify right side
    441,085,998.80x = 291,835,287,506,090,432
  5. Step 5: Solve for x
    x = 291,835,287,506,090,432/441,085,998.80
  6. Step 6: Final answer
    x = 661,628,998.20

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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.