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Finding the Fourth Proportional to 443,797,903.80, 665,696,855.70 and 185,198,713.20

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Solution

The fourth proportional to 443,797,903.80, 665,696,855.70 and 185,198,713.20 is: 277,798,069.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,797,903.80 : 665,696,855.70 = 185,198,713.20 : x
  2. Step 2: Convert to fraction form
    443,797,903.80/665,696,855.70 = 185,198,713.20/x
  3. Step 3: Cross multiply
    443,797,903.80x = 665,696,855.70 × 185,198,713.20
  4. Step 4: Simplify right side
    443,797,903.80x = 123,286,201,056,926,080
  5. Step 5: Solve for x
    x = 123,286,201,056,926,080/443,797,903.80
  6. Step 6: Final answer
    x = 277,798,069.80

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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.