Home / 649,288.20-973,932.30-400,110.60

Finding the Fourth Proportional to 649,288.20, 973,932.30 and 400,110.60

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Solution

The fourth proportional to 649,288.20, 973,932.30 and 400,110.60 is: 600,165.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,288.20 : 973,932.30 = 400,110.60 : x
  2. Step 2: Convert to fraction form
    649,288.20/973,932.30 = 400,110.60/x
  3. Step 3: Cross multiply
    649,288.20x = 973,932.30 × 400,110.60
  4. Step 4: Simplify right side
    649,288.20x = 389,680,636,912.38
  5. Step 5: Solve for x
    x = 389,680,636,912.38/649,288.20
  6. Step 6: Final answer
    x = 600,165.90

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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.