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Finding the Fourth Proportional to 1,933,783.72, 2,899,679.58 and 867,912.04

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Solution

The fourth proportional to 1,933,783.72, 2,899,679.58 and 867,912.04 is: 1,301,421.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933,783.72 : 2,899,679.58 = 867,912.04 : x
  2. Step 2: Convert to fraction form
    1,933,783.72/2,899,679.58 = 867,912.04/x
  3. Step 3: Cross multiply
    1,933,783.72x = 2,899,679.58 × 867,912.04
  4. Step 4: Simplify right side
    1,933,783.72x = 2,516,666,819,624.14
  5. Step 5: Solve for x
    x = 2,516,666,819,624.14/1,933,783.72
  6. Step 6: Final answer
    x = 1,301,421.04

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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.