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Finding the Fourth Proportional to 1,444,489,749.86, 1,993,396,143.90 and 879,974,602.00

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Solution

The fourth proportional to 1,444,489,749.86, 1,993,396,143.90 and 879,974,602.00 is: 1,214,365,126.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444,489,749.86 : 1,993,396,143.90 = 879,974,602.00 : x
  2. Step 2: Convert to fraction form
    1,444,489,749.86/1,993,396,143.90 = 879,974,602.00/x
  3. Step 3: Cross multiply
    1,444,489,749.86x = 1,993,396,143.90 × 879,974,602.00
  4. Step 4: Simplify right side
    1,444,489,749.86x = 1,754,137,978,356,934,912
  5. Step 5: Solve for x
    x = 1,754,137,978,356,934,912/1,444,489,749.86
  6. Step 6: Final answer
    x = 1,214,365,126.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.