Home / 621,261.95-931,991.36-200,439.41

Finding the Fourth Proportional to 621,261.95, 931,991.36 and 200,439.41

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Solution

The fourth proportional to 621,261.95, 931,991.36 and 200,439.41 is: 300,690.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,261.95 : 931,991.36 = 200,439.41 : x
  2. Step 2: Convert to fraction form
    621,261.95/931,991.36 = 200,439.41/x
  3. Step 3: Cross multiply
    621,261.95x = 931,991.36 × 200,439.41
  4. Step 4: Simplify right side
    621,261.95x = 186,807,792,661.34
  5. Step 5: Solve for x
    x = 186,807,792,661.34/621,261.95
  6. Step 6: Final answer
    x = 300,690.87

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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.