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Finding the Fourth Proportional to 1,407,964.05, 1,942,978.66 and 796,236.91

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Solution

The fourth proportional to 1,407,964.05, 1,942,978.66 and 796,236.91 is: 1,098,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,964.05 : 1,942,978.66 = 796,236.91 : x
  2. Step 2: Convert to fraction form
    1,407,964.05/1,942,978.66 = 796,236.91/x
  3. Step 3: Cross multiply
    1,407,964.05x = 1,942,978.66 × 796,236.91
  4. Step 4: Simplify right side
    1,407,964.05x = 1,547,071,317,586.30
  5. Step 5: Solve for x
    x = 1,547,071,317,586.30/1,407,964.05
  6. Step 6: Final answer
    x = 1,098,800.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.