Home / 1,904,601.92-2,856,911.68-642,440.64

Finding the Fourth Proportional to 1,904,601.92, 2,856,911.68 and 642,440.64

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Solution

The fourth proportional to 1,904,601.92, 2,856,911.68 and 642,440.64 is: 963,663.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904,601.92 : 2,856,911.68 = 642,440.64 : x
  2. Step 2: Convert to fraction form
    1,904,601.92/2,856,911.68 = 642,440.64/x
  3. Step 3: Cross multiply
    1,904,601.92x = 2,856,911.68 × 642,440.64
  4. Step 4: Simplify right side
    1,904,601.92x = 1,835,396,168,122.68
  5. Step 5: Solve for x
    x = 1,835,396,168,122.68/1,904,601.92
  6. Step 6: Final answer
    x = 963,663.93

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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.