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Finding the Fourth Proportional to 802,095, 1,106,891.10 and 479,818.68

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Solution

The fourth proportional to 802,095, 1,106,891.10 and 479,818.68 is: 662,149.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,095 : 1,106,891.10 = 479,818.68 : x
  2. Step 2: Convert to fraction form
    802,095/1,106,891.10 = 479,818.68/x
  3. Step 3: Cross multiply
    802,095x = 1,106,891.10 × 479,818.68
  4. Step 4: Simplify right side
    802,095x = 531,107,026,505.75
  5. Step 5: Solve for x
    x = 531,107,026,505.75/802,095
  6. Step 6: Final answer
    x = 662,149.78

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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.