Home / 649,292.20-973,938.30-400,114.60

Finding the Fourth Proportional to 649,292.20, 973,938.30 and 400,114.60

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Solution

The fourth proportional to 649,292.20, 973,938.30 and 400,114.60 is: 600,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,292.20 : 973,938.30 = 400,114.60 : x
  2. Step 2: Convert to fraction form
    649,292.20/973,938.30 = 400,114.60/x
  3. Step 3: Cross multiply
    649,292.20x = 973,938.30 × 400,114.60
  4. Step 4: Simplify right side
    649,292.20x = 389,686,933,329.18
  5. Step 5: Solve for x
    x = 389,686,933,329.18/649,292.20
  6. Step 6: Final answer
    x = 600,171.90

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Double scale
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Similar ratio
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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.