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Finding the Fourth Proportional to 443,446.35, 611,955.91 and 239,497.31

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Solution

The fourth proportional to 443,446.35, 611,955.91 and 239,497.31 is: 330,506.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,446.35 : 611,955.91 = 239,497.31 : x
  2. Step 2: Convert to fraction form
    443,446.35/611,955.91 = 239,497.31/x
  3. Step 3: Cross multiply
    443,446.35x = 611,955.91 × 239,497.31
  4. Step 4: Simplify right side
    443,446.35x = 146,561,792,670.61
  5. Step 5: Solve for x
    x = 146,561,792,670.61/443,446.35
  6. Step 6: Final answer
    x = 330,506.26

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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.