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Finding the Fourth Proportional to 1,064,869.65, 1,469,579.63 and 581,479.65

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Solution

The fourth proportional to 1,064,869.65, 1,469,579.63 and 581,479.65 is: 802,474.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064,869.65 : 1,469,579.63 = 581,479.65 : x
  2. Step 2: Convert to fraction form
    1,064,869.65/1,469,579.63 = 581,479.65/x
  3. Step 3: Cross multiply
    1,064,869.65x = 1,469,579.63 × 581,479.65
  4. Step 4: Simplify right side
    1,064,869.65x = 854,530,645,992.13
  5. Step 5: Solve for x
    x = 854,530,645,992.13/1,064,869.65
  6. Step 6: Final answer
    x = 802,474.41

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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.