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Finding the Fourth Proportional to 1,922,957.03, 2,654,497.80 and 1,198,162.86

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Solution

The fourth proportional to 1,922,957.03, 2,654,497.80 and 1,198,162.86 is: 1,653,973.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922,957.03 : 2,654,497.80 = 1,198,162.86 : x
  2. Step 2: Convert to fraction form
    1,922,957.03/2,654,497.80 = 1,198,162.86/x
  3. Step 3: Cross multiply
    1,922,957.03x = 2,654,497.80 × 1,198,162.86
  4. Step 4: Simplify right side
    1,922,957.03x = 3,180,520,675,911.71
  5. Step 5: Solve for x
    x = 3,180,520,675,911.71/1,922,957.03
  6. Step 6: Final answer
    x = 1,653,973.87

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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.