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Finding the Fourth Proportional to 1,799,841.98, 2,700,513.38 and 789,689.93

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Solution

The fourth proportional to 1,799,841.98, 2,700,513.38 and 789,689.93 is: 1,184,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,799,841.98 : 2,700,513.38 = 789,689.93 : x
  2. Step 2: Convert to fraction form
    1,799,841.98/2,700,513.38 = 789,689.93/x
  3. Step 3: Cross multiply
    1,799,841.98x = 2,700,513.38 × 789,689.93
  4. Step 4: Simplify right side
    1,799,841.98x = 2,132,568,230,741.77
  5. Step 5: Solve for x
    x = 2,132,568,230,741.77/1,799,841.98
  6. Step 6: Final answer
    x = 1,184,864.15

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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.