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Finding the Fourth Proportional to 323,312.80, 484,969.20 and 248,576.80

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Solution

The fourth proportional to 323,312.80, 484,969.20 and 248,576.80 is: 372,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,312.80 : 484,969.20 = 248,576.80 : x
  2. Step 2: Convert to fraction form
    323,312.80/484,969.20 = 248,576.80/x
  3. Step 3: Cross multiply
    323,312.80x = 484,969.20 × 248,576.80
  4. Step 4: Simplify right side
    323,312.80x = 120,552,091,834.56
  5. Step 5: Solve for x
    x = 120,552,091,834.56/323,312.80
  6. Step 6: Final answer
    x = 372,865.20

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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.