Home / 1,285,816.32-1,928,102.40-444,072.96

Finding the Fourth Proportional to 1,285,816.32, 1,928,102.40 and 444,072.96

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Solution

The fourth proportional to 1,285,816.32, 1,928,102.40 and 444,072.96 is: 665,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,816.32 : 1,928,102.40 = 444,072.96 : x
  2. Step 2: Convert to fraction form
    1,285,816.32/1,928,102.40 = 444,072.96/x
  3. Step 3: Cross multiply
    1,285,816.32x = 1,928,102.40 × 444,072.96
  4. Step 4: Simplify right side
    1,285,816.32x = 856,218,139,951.10
  5. Step 5: Solve for x
    x = 856,218,139,951.10/1,285,816.32
  6. Step 6: Final answer
    x = 665,894.60

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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.