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Finding the Fourth Proportional to 1,106,964.54, 1,660,971.69 and 658,571.22

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Solution

The fourth proportional to 1,106,964.54, 1,660,971.69 and 658,571.22 is: 988,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,964.54 : 1,660,971.69 = 658,571.22 : x
  2. Step 2: Convert to fraction form
    1,106,964.54/1,660,971.69 = 658,571.22/x
  3. Step 3: Cross multiply
    1,106,964.54x = 1,660,971.69 × 658,571.22
  4. Step 4: Simplify right side
    1,106,964.54x = 1,093,868,152,268.76
  5. Step 5: Solve for x
    x = 1,093,868,152,268.76/1,106,964.54
  6. Step 6: Final answer
    x = 988,169.10

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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.