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Finding the Fourth Proportional to 404,158,912.20, 606,238,368.30 and 404,158,912.20

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Solution

The fourth proportional to 404,158,912.20, 606,238,368.30 and 404,158,912.20 is: 606,238,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,158,912.20 : 606,238,368.30 = 404,158,912.20 : x
  2. Step 2: Convert to fraction form
    404,158,912.20/606,238,368.30 = 404,158,912.20/x
  3. Step 3: Cross multiply
    404,158,912.20x = 606,238,368.30 × 404,158,912.20
  4. Step 4: Simplify right side
    404,158,912.20x = 245,016,639,466,030,944
  5. Step 5: Solve for x
    x = 245,016,639,466,030,944/404,158,912.20
  6. Step 6: Final answer
    x = 606,238,368.30

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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.