Home / 1,065,913.96-1,471,111.29-678,605.66

Finding the Fourth Proportional to 1,065,913.96, 1,471,111.29 and 678,605.66

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Solution

The fourth proportional to 1,065,913.96, 1,471,111.29 and 678,605.66 is: 936,571.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,913.96 : 1,471,111.29 = 678,605.66 : x
  2. Step 2: Convert to fraction form
    1,065,913.96/1,471,111.29 = 678,605.66/x
  3. Step 3: Cross multiply
    1,065,913.96x = 1,471,111.29 × 678,605.66
  4. Step 4: Simplify right side
    1,065,913.96x = 998,304,447,883.90
  5. Step 5: Solve for x
    x = 998,304,447,883.90/1,065,913.96
  6. Step 6: Final answer
    x = 936,571.32

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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.