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Finding the Fourth Proportional to 499,416.42, 689,194.66 and 273,061.92

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Solution

The fourth proportional to 499,416.42, 689,194.66 and 273,061.92 is: 376,825.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,416.42 : 689,194.66 = 273,061.92 : x
  2. Step 2: Convert to fraction form
    499,416.42/689,194.66 = 273,061.92/x
  3. Step 3: Cross multiply
    499,416.42x = 689,194.66 × 273,061.92
  4. Step 4: Simplify right side
    499,416.42x = 188,192,817,113.35
  5. Step 5: Solve for x
    x = 188,192,817,113.35/499,416.42
  6. Step 6: Final answer
    x = 376,825.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.