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Finding the Fourth Proportional to 321,237.39, 443,300.99 and 177,996.18

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Solution

The fourth proportional to 321,237.39, 443,300.99 and 177,996.18 is: 245,631.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,237.39 : 443,300.99 = 177,996.18 : x
  2. Step 2: Convert to fraction form
    321,237.39/443,300.99 = 177,996.18/x
  3. Step 3: Cross multiply
    321,237.39x = 443,300.99 × 177,996.18
  4. Step 4: Simplify right side
    321,237.39x = 78,905,881,920.24
  5. Step 5: Solve for x
    x = 78,905,881,920.24/321,237.39
  6. Step 6: Final answer
    x = 245,631.06

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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.