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Finding the Fourth Proportional to 351,517.57, 484,731.46 and 300,698.53

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Solution

The fourth proportional to 351,517.57, 484,731.46 and 300,698.53 is: 414,653.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,517.57 : 484,731.46 = 300,698.53 : x
  2. Step 2: Convert to fraction form
    351,517.57/484,731.46 = 300,698.53/x
  3. Step 3: Cross multiply
    351,517.57x = 484,731.46 × 300,698.53
  4. Step 4: Simplify right side
    351,517.57x = 145,758,037,476.51
  5. Step 5: Solve for x
    x = 145,758,037,476.51/351,517.57
  6. Step 6: Final answer
    x = 414,653.63

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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.