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Finding the Fourth Proportional to 867,571.64, 1,299,093.87 and 698,166.62

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Solution

The fourth proportional to 867,571.64, 1,299,093.87 and 698,166.62 is: 1,045,428.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,571.64 : 1,299,093.87 = 698,166.62 : x
  2. Step 2: Convert to fraction form
    867,571.64/1,299,093.87 = 698,166.62/x
  3. Step 3: Cross multiply
    867,571.64x = 1,299,093.87 × 698,166.62
  4. Step 4: Simplify right side
    867,571.64x = 906,983,976,280.62
  5. Step 5: Solve for x
    x = 906,983,976,280.62/867,571.64
  6. Step 6: Final answer
    x = 1,045,428.34

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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.