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Finding the Fourth Proportional to 1,769,660.92, 2,650,357.95 and 1,626,762.34

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Solution

The fourth proportional to 1,769,660.92, 2,650,357.95 and 1,626,762.34 is: 2,436,343.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769,660.92 : 2,650,357.95 = 1,626,762.34 : x
  2. Step 2: Convert to fraction form
    1,769,660.92/2,650,357.95 = 1,626,762.34/x
  3. Step 3: Cross multiply
    1,769,660.92x = 2,650,357.95 × 1,626,762.34
  4. Step 4: Simplify right side
    1,769,660.92x = 4,311,502,500,579.60
  5. Step 5: Solve for x
    x = 4,311,502,500,579.60/1,769,660.92
  6. Step 6: Final answer
    x = 2,436,343.85

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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.