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Finding the Fourth Proportional to 539,402.70, 809,104.05 and 184,428.30

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Solution

The fourth proportional to 539,402.70, 809,104.05 and 184,428.30 is: 276,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,402.70 : 809,104.05 = 184,428.30 : x
  2. Step 2: Convert to fraction form
    539,402.70/809,104.05 = 184,428.30/x
  3. Step 3: Cross multiply
    539,402.70x = 809,104.05 × 184,428.30
  4. Step 4: Simplify right side
    539,402.70x = 149,221,684,464.62
  5. Step 5: Solve for x
    x = 149,221,684,464.62/539,402.70
  6. Step 6: Final answer
    x = 276,642.45

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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.