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Finding the Fourth Proportional to 513,343.54, 769,373.79 and 247,032.55

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Solution

The fourth proportional to 513,343.54, 769,373.79 and 247,032.55 is: 370,240.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,343.54 : 769,373.79 = 247,032.55 : x
  2. Step 2: Convert to fraction form
    513,343.54/769,373.79 = 247,032.55/x
  3. Step 3: Cross multiply
    513,343.54x = 769,373.79 × 247,032.55
  4. Step 4: Simplify right side
    513,343.54x = 190,060,369,246.87
  5. Step 5: Solve for x
    x = 190,060,369,246.87/513,343.54
  6. Step 6: Final answer
    x = 370,240.11

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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.