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Finding the Fourth Proportional to 393,750.73, 590,363.65 and 191,292.85

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Solution

The fourth proportional to 393,750.73, 590,363.65 and 191,292.85 is: 286,811.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,750.73 : 590,363.65 = 191,292.85 : x
  2. Step 2: Convert to fraction form
    393,750.73/590,363.65 = 191,292.85/x
  3. Step 3: Cross multiply
    393,750.73x = 590,363.65 × 191,292.85
  4. Step 4: Simplify right side
    393,750.73x = 112,932,345,144.90
  5. Step 5: Solve for x
    x = 112,932,345,144.90/393,750.73
  6. Step 6: Final answer
    x = 286,811.77

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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.