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Finding the Fourth Proportional to 443,527.62, 612,068.35 and 239,578.54

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Solution

The fourth proportional to 443,527.62, 612,068.35 and 239,578.54 is: 330,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,527.62 : 612,068.35 = 239,578.54 : x
  2. Step 2: Convert to fraction form
    443,527.62/612,068.35 = 239,578.54/x
  3. Step 3: Cross multiply
    443,527.62x = 612,068.35 × 239,578.54
  4. Step 4: Simplify right side
    443,527.62x = 146,638,441,673.21
  5. Step 5: Solve for x
    x = 146,638,441,673.21/443,527.62
  6. Step 6: Final answer
    x = 330,618.51

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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.