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Finding the Fourth Proportional to 663,603,204.80, 995,404,807.20 and 663,603,204.80

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Solution

The fourth proportional to 663,603,204.80, 995,404,807.20 and 663,603,204.80 is: 995,404,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,603,204.80 : 995,404,807.20 = 663,603,204.80 : x
  2. Step 2: Convert to fraction form
    663,603,204.80/995,404,807.20 = 663,603,204.80/x
  3. Step 3: Cross multiply
    663,603,204.80x = 995,404,807.20 × 663,603,204.80
  4. Step 4: Simplify right side
    663,603,204.80x = 660,553,820,131,246,080
  5. Step 5: Solve for x
    x = 660,553,820,131,246,080/663,603,204.80
  6. Step 6: Final answer
    x = 995,404,807.20

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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.