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Finding the Fourth Proportional to 2,621,383.04, 3,933,017.70 and 915,777.28

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Solution

The fourth proportional to 2,621,383.04, 3,933,017.70 and 915,777.28 is: 1,373,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621,383.04 : 3,933,017.70 = 915,777.28 : x
  2. Step 2: Convert to fraction form
    2,621,383.04/3,933,017.70 = 915,777.28/x
  3. Step 3: Cross multiply
    2,621,383.04x = 3,933,017.70 × 915,777.28
  4. Step 4: Simplify right side
    2,621,383.04x = 3,601,768,241,665.31
  5. Step 5: Solve for x
    x = 3,601,768,241,665.31/2,621,383.04
  6. Step 6: Final answer
    x = 1,373,995.40

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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.