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Finding the Fourth Proportional to 2,044,886.96, 2,821,955.20 and 1,185,956.48

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Solution

The fourth proportional to 2,044,886.96, 2,821,955.20 and 1,185,956.48 is: 1,636,626.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,044,886.96 : 2,821,955.20 = 1,185,956.48 : x
  2. Step 2: Convert to fraction form
    2,044,886.96/2,821,955.20 = 1,185,956.48/x
  3. Step 3: Cross multiply
    2,044,886.96x = 2,821,955.20 × 1,185,956.48
  4. Step 4: Simplify right side
    2,044,886.96x = 3,346,716,055,709.70
  5. Step 5: Solve for x
    x = 3,346,716,055,709.70/2,044,886.96
  6. Step 6: Final answer
    x = 1,636,626.44

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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.