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Finding the Fourth Proportional to 613,043.30, 919,697.30 and 186,612.46

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Solution

The fourth proportional to 613,043.30, 919,697.30 and 186,612.46 is: 279,958.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,043.30 : 919,697.30 = 186,612.46 : x
  2. Step 2: Convert to fraction form
    613,043.30/919,697.30 = 186,612.46/x
  3. Step 3: Cross multiply
    613,043.30x = 919,697.30 × 186,612.46
  4. Step 4: Simplify right side
    613,043.30x = 171,626,976,524.71
  5. Step 5: Solve for x
    x = 171,626,976,524.71/613,043.30
  6. Step 6: Final answer
    x = 279,958.98

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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.