Home / 621,022.20-931,446.90-200,340.60

Finding the Fourth Proportional to 621,022.20, 931,446.90 and 200,340.60

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Solution

The fourth proportional to 621,022.20, 931,446.90 and 200,340.60 is: 300,483.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,022.20 : 931,446.90 = 200,340.60 : x
  2. Step 2: Convert to fraction form
    621,022.20/931,446.90 = 200,340.60/x
  3. Step 3: Cross multiply
    621,022.20x = 931,446.90 × 200,340.60
  4. Step 4: Simplify right side
    621,022.20x = 186,606,630,814.14
  5. Step 5: Solve for x
    x = 186,606,630,814.14/621,022.20
  6. Step 6: Final answer
    x = 300,483.03

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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.