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Finding the Fourth Proportional to 443,568.23, 612,124.70 and 239,619.14

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Solution

The fourth proportional to 443,568.23, 612,124.70 and 239,619.14 is: 330,674.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,568.23 : 612,124.70 = 239,619.14 : x
  2. Step 2: Convert to fraction form
    443,568.23/612,124.70 = 239,619.14/x
  3. Step 3: Cross multiply
    443,568.23x = 612,124.70 × 239,619.14
  4. Step 4: Simplify right side
    443,568.23x = 146,676,797,688.49
  5. Step 5: Solve for x
    x = 146,676,797,688.49/443,568.23
  6. Step 6: Final answer
    x = 330,674.71

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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.