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Finding the Fourth Proportional to 430,172.80, 593,636.52 and 239,174.80

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Solution

The fourth proportional to 430,172.80, 593,636.52 and 239,174.80 is: 330,060.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,172.80 : 593,636.52 = 239,174.80 : x
  2. Step 2: Convert to fraction form
    430,172.80/593,636.52 = 239,174.80/x
  3. Step 3: Cross multiply
    430,172.80x = 593,636.52 × 239,174.80
  4. Step 4: Simplify right side
    430,172.80x = 141,982,895,943.70
  5. Step 5: Solve for x
    x = 141,982,895,943.70/430,172.80
  6. Step 6: Final answer
    x = 330,060.14

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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.