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Finding the Fourth Proportional to 1,163,888.82, 1,606,904.45 and 796,979.91

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Solution

The fourth proportional to 1,163,888.82, 1,606,904.45 and 796,979.91 is: 1,100,337.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163,888.82 : 1,606,904.45 = 796,979.91 : x
  2. Step 2: Convert to fraction form
    1,163,888.82/1,606,904.45 = 796,979.91/x
  3. Step 3: Cross multiply
    1,163,888.82x = 1,606,904.45 × 796,979.91
  4. Step 4: Simplify right side
    1,163,888.82x = 1,280,670,563,939.60
  5. Step 5: Solve for x
    x = 1,280,670,563,939.60/1,163,888.82
  6. Step 6: Final answer
    x = 1,100,337.54

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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.