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Finding the Fourth Proportional to 521,591.40, 782,192.70 and 184,501.80

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Solution

The fourth proportional to 521,591.40, 782,192.70 and 184,501.80 is: 276,683.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,591.40 : 782,192.70 = 184,501.80 : x
  2. Step 2: Convert to fraction form
    521,591.40/782,192.70 = 184,501.80/x
  3. Step 3: Cross multiply
    521,591.40x = 782,192.70 × 184,501.80
  4. Step 4: Simplify right side
    521,591.40x = 144,315,961,096.86
  5. Step 5: Solve for x
    x = 144,315,961,096.86/521,591.40
  6. Step 6: Final answer
    x = 276,683.94

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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.