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Finding the Fourth Proportional to 1,799,444.76, 2,699,916.78 and 789,292.14

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Solution

The fourth proportional to 1,799,444.76, 2,699,916.78 and 789,292.14 is: 1,184,267.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,799,444.76 : 2,699,916.78 = 789,292.14 : x
  2. Step 2: Convert to fraction form
    1,799,444.76/2,699,916.78 = 789,292.14/x
  3. Step 3: Cross multiply
    1,799,444.76x = 2,699,916.78 × 789,292.14
  4. Step 4: Simplify right side
    1,799,444.76x = 2,131,023,093,108.11
  5. Step 5: Solve for x
    x = 2,131,023,093,108.11/1,799,444.76
  6. Step 6: Final answer
    x = 1,184,267.03

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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.