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Finding the Fourth Proportional to 293,896.80, 439,970.40 and 175,507.20

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Solution

The fourth proportional to 293,896.80, 439,970.40 and 175,507.20 is: 262,738.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,896.80 : 439,970.40 = 175,507.20 : x
  2. Step 2: Convert to fraction form
    293,896.80/439,970.40 = 175,507.20/x
  3. Step 3: Cross multiply
    293,896.80x = 439,970.40 × 175,507.20
  4. Step 4: Simplify right side
    293,896.80x = 77,217,972,986.88
  5. Step 5: Solve for x
    x = 77,217,972,986.88/293,896.80
  6. Step 6: Final answer
    x = 262,738.39

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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.