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Finding the Fourth Proportional to 539,894.82, 809,990.19 and 236,233.95

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Solution

The fourth proportional to 539,894.82, 809,990.19 and 236,233.95 is: 354,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,894.82 : 809,990.19 = 236,233.95 : x
  2. Step 2: Convert to fraction form
    539,894.82/809,990.19 = 236,233.95/x
  3. Step 3: Cross multiply
    539,894.82x = 809,990.19 × 236,233.95
  4. Step 4: Simplify right side
    539,894.82x = 191,347,182,044.95
  5. Step 5: Solve for x
    x = 191,347,182,044.95/539,894.82
  6. Step 6: Final answer
    x = 354,415.67

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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.