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Finding the Fourth Proportional to 521,668.75, 782,358.55 and 184,665.06

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Solution

The fourth proportional to 521,668.75, 782,358.55 and 184,665.06 is: 276,946.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,668.75 : 782,358.55 = 184,665.06 : x
  2. Step 2: Convert to fraction form
    521,668.75/782,358.55 = 184,665.06/x
  3. Step 3: Cross multiply
    521,668.75x = 782,358.55 × 184,665.06
  4. Step 4: Simplify right side
    521,668.75x = 144,474,288,577.26
  5. Step 5: Solve for x
    x = 144,474,288,577.26/521,668.75
  6. Step 6: Final answer
    x = 276,946.41

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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.