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Finding the Fourth Proportional to 545,351.36, 818,194.10 and 279,298.76

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Solution

The fourth proportional to 545,351.36, 818,194.10 and 279,298.76 is: 419,033.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,351.36 : 818,194.10 = 279,298.76 : x
  2. Step 2: Convert to fraction form
    545,351.36/818,194.10 = 279,298.76/x
  3. Step 3: Cross multiply
    545,351.36x = 818,194.10 × 279,298.76
  4. Step 4: Simplify right side
    545,351.36x = 228,520,592,081.85
  5. Step 5: Solve for x
    x = 228,520,592,081.85/545,351.36
  6. Step 6: Final answer
    x = 419,033.69

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1.5x scale

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.