Home / 621,261.46-931,990.59-200,438.92

Finding the Fourth Proportional to 621,261.46, 931,990.59 and 200,438.92

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Solution

The fourth proportional to 621,261.46, 931,990.59 and 200,438.92 is: 300,690.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,261.46 : 931,990.59 = 200,438.92 : x
  2. Step 2: Convert to fraction form
    621,261.46/931,990.59 = 200,438.92/x
  3. Step 3: Cross multiply
    621,261.46x = 931,990.59 × 200,438.92
  4. Step 4: Simplify right side
    621,261.46x = 186,807,187,309.76
  5. Step 5: Solve for x
    x = 186,807,187,309.76/621,261.46
  6. Step 6: Final answer
    x = 300,690.13

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1.5x scale

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.