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Finding the Fourth Proportional to 521,671.89, 782,363.31 and 184,668.15

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Solution

The fourth proportional to 521,671.89, 782,363.31 and 184,668.15 is: 276,951.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,671.89 : 782,363.31 = 184,668.15 : x
  2. Step 2: Convert to fraction form
    521,671.89/782,363.31 = 184,668.15/x
  3. Step 3: Cross multiply
    521,671.89x = 782,363.31 × 184,668.15
  4. Step 4: Simplify right side
    521,671.89x = 144,477,587,326.93
  5. Step 5: Solve for x
    x = 144,477,587,326.93/521,671.89
  6. Step 6: Final answer
    x = 276,951.07

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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.