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Finding the Fourth Proportional to 2,019,843.06, 2,787,381.90 and 1,114,425.06

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Solution

The fourth proportional to 2,019,843.06, 2,787,381.90 and 1,114,425.06 is: 1,537,905.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019,843.06 : 2,787,381.90 = 1,114,425.06 : x
  2. Step 2: Convert to fraction form
    2,019,843.06/2,787,381.90 = 1,114,425.06/x
  3. Step 3: Cross multiply
    2,019,843.06x = 2,787,381.90 × 1,114,425.06
  4. Step 4: Simplify right side
    2,019,843.06x = 3,106,328,241,150.41
  5. Step 5: Solve for x
    x = 3,106,328,241,150.41/2,019,843.06
  6. Step 6: Final answer
    x = 1,537,905.74

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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.