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Finding the Fourth Proportional to 2,661,617, 3,993,569.58 and 865,051.40

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Solution

The fourth proportional to 2,661,617, 3,993,569.58 and 865,051.40 is: 1,297,948.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,617 : 3,993,569.58 = 865,051.40 : x
  2. Step 2: Convert to fraction form
    2,661,617/3,993,569.58 = 865,051.40/x
  3. Step 3: Cross multiply
    2,661,617x = 3,993,569.58 × 865,051.40
  4. Step 4: Simplify right side
    2,661,617x = 3,454,642,956,176.41
  5. Step 5: Solve for x
    x = 3,454,642,956,176.41/2,661,617
  6. Step 6: Final answer
    x = 1,297,948.94

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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.