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Finding the Fourth Proportional to 1,789,427.54, 2,684,555.48 and 936,962.28

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Solution

The fourth proportional to 1,789,427.54, 2,684,555.48 and 936,962.28 is: 1,405,660.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,427.54 : 2,684,555.48 = 936,962.28 : x
  2. Step 2: Convert to fraction form
    1,789,427.54/2,684,555.48 = 936,962.28/x
  3. Step 3: Cross multiply
    1,789,427.54x = 2,684,555.48 × 936,962.28
  4. Step 4: Simplify right side
    1,789,427.54x = 2,515,327,223,327.29
  5. Step 5: Solve for x
    x = 2,515,327,223,327.29/1,789,427.54
  6. Step 6: Final answer
    x = 1,405,660.28

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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.