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Finding the Fourth Proportional to 268,832,312.80, 403,248,469.20 and 268,832,312.80

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Solution

The fourth proportional to 268,832,312.80, 403,248,469.20 and 268,832,312.80 is: 403,248,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,832,312.80 : 403,248,469.20 = 268,832,312.80 : x
  2. Step 2: Convert to fraction form
    268,832,312.80/403,248,469.20 = 268,832,312.80/x
  3. Step 3: Cross multiply
    268,832,312.80x = 403,248,469.20 × 268,832,312.80
  4. Step 4: Simplify right side
    268,832,312.80x = 108,406,218,608,095,568
  5. Step 5: Solve for x
    x = 108,406,218,608,095,568/268,832,312.80
  6. Step 6: Final answer
    x = 403,248,469.20

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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.