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Finding the Fourth Proportional to 539,464.20, 809,196.30 and 371,502.60

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Solution

The fourth proportional to 539,464.20, 809,196.30 and 371,502.60 is: 557,253.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,464.20 : 809,196.30 = 371,502.60 : x
  2. Step 2: Convert to fraction form
    539,464.20/809,196.30 = 371,502.60/x
  3. Step 3: Cross multiply
    539,464.20x = 809,196.30 × 371,502.60
  4. Step 4: Simplify right side
    539,464.20x = 300,618,529,360.38
  5. Step 5: Solve for x
    x = 300,618,529,360.38/539,464.20
  6. Step 6: Final answer
    x = 557,253.90

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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.