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Finding the Fourth Proportional to 545,337.36, 818,049.78 and 190,343.52

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Solution

The fourth proportional to 545,337.36, 818,049.78 and 190,343.52 is: 285,530.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,337.36 : 818,049.78 = 190,343.52 : x
  2. Step 2: Convert to fraction form
    545,337.36/818,049.78 = 190,343.52/x
  3. Step 3: Cross multiply
    545,337.36x = 818,049.78 × 190,343.52
  4. Step 4: Simplify right side
    545,337.36x = 155,710,474,660.43
  5. Step 5: Solve for x
    x = 155,710,474,660.43/545,337.36
  6. Step 6: Final answer
    x = 285,530.55

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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.