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Finding the Fourth Proportional to 430,745.39, 594,428.59 and 239,754.68

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Solution

The fourth proportional to 430,745.39, 594,428.59 and 239,754.68 is: 330,861.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,745.39 : 594,428.59 = 239,754.68 : x
  2. Step 2: Convert to fraction form
    430,745.39/594,428.59 = 239,754.68/x
  3. Step 3: Cross multiply
    430,745.39x = 594,428.59 × 239,754.68
  4. Step 4: Simplify right side
    430,745.39x = 142,517,036,378.30
  5. Step 5: Solve for x
    x = 142,517,036,378.30/430,745.39
  6. Step 6: Final answer
    x = 330,861.43

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1.5x scale

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.