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Finding the Fourth Proportional to 1,883,631.74, 2,826,703.91 and 685,553.72

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Solution

The fourth proportional to 1,883,631.74, 2,826,703.91 and 685,553.72 is: 1,028,787.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,883,631.74 : 2,826,703.91 = 685,553.72 : x
  2. Step 2: Convert to fraction form
    1,883,631.74/2,826,703.91 = 685,553.72/x
  3. Step 3: Cross multiply
    1,883,631.74x = 2,826,703.91 × 685,553.72
  4. Step 4: Simplify right side
    1,883,631.74x = 1,937,857,368,419.41
  5. Step 5: Solve for x
    x = 1,937,857,368,419.41/1,883,631.74
  6. Step 6: Final answer
    x = 1,028,787.81

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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.