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Finding the Fourth Proportional to 539,774.02, 809,662.05 and 140,414.15

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Solution

The fourth proportional to 539,774.02, 809,662.05 and 140,414.15 is: 210,621.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,774.02 : 809,662.05 = 140,414.15 : x
  2. Step 2: Convert to fraction form
    539,774.02/809,662.05 = 140,414.15/x
  3. Step 3: Cross multiply
    539,774.02x = 809,662.05 × 140,414.15
  4. Step 4: Simplify right side
    539,774.02x = 113,688,008,284.99
  5. Step 5: Solve for x
    x = 113,688,008,284.99/539,774.02
  6. Step 6: Final answer
    x = 210,621.49

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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.