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Finding the Fourth Proportional to 399,024.80, 598,537.20 and 294,048.80

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Solution

The fourth proportional to 399,024.80, 598,537.20 and 294,048.80 is: 441,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,024.80 : 598,537.20 = 294,048.80 : x
  2. Step 2: Convert to fraction form
    399,024.80/598,537.20 = 294,048.80/x
  3. Step 3: Cross multiply
    399,024.80x = 598,537.20 × 294,048.80
  4. Step 4: Simplify right side
    399,024.80x = 175,999,145,415.36
  5. Step 5: Solve for x
    x = 175,999,145,415.36/399,024.80
  6. Step 6: Final answer
    x = 441,073.20

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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.