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Finding the Fourth Proportional to 1,927,399.60, 2,659,753.84 and 1,056,223.87

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Solution

The fourth proportional to 1,927,399.60, 2,659,753.84 and 1,056,223.87 is: 1,457,557.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927,399.60 : 2,659,753.84 = 1,056,223.87 : x
  2. Step 2: Convert to fraction form
    1,927,399.60/2,659,753.84 = 1,056,223.87/x
  3. Step 3: Cross multiply
    1,927,399.60x = 2,659,753.84 × 1,056,223.87
  4. Step 4: Simplify right side
    1,927,399.60x = 2,809,295,484,842.22
  5. Step 5: Solve for x
    x = 2,809,295,484,842.22/1,927,399.60
  6. Step 6: Final answer
    x = 1,457,557.37

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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.