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Finding the Fourth Proportional to 1,922,866.62, 2,879,418.77 and 1,153,880.86

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Solution

The fourth proportional to 1,922,866.62, 2,879,418.77 and 1,153,880.86 is: 1,727,892.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922,866.62 : 2,879,418.77 = 1,153,880.86 : x
  2. Step 2: Convert to fraction form
    1,922,866.62/2,879,418.77 = 1,153,880.86/x
  3. Step 3: Cross multiply
    1,922,866.62x = 2,879,418.77 × 1,153,880.86
  4. Step 4: Simplify right side
    1,922,866.62x = 3,322,506,193,659.79
  5. Step 5: Solve for x
    x = 3,322,506,193,659.79/1,922,866.62
  6. Step 6: Final answer
    x = 1,727,892.18

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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.