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Finding the Fourth Proportional to 336,220.80, 504,331.20 and 312,601.20

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Solution

The fourth proportional to 336,220.80, 504,331.20 and 312,601.20 is: 468,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,220.80 : 504,331.20 = 312,601.20 : x
  2. Step 2: Convert to fraction form
    336,220.80/504,331.20 = 312,601.20/x
  3. Step 3: Cross multiply
    336,220.80x = 504,331.20 × 312,601.20
  4. Step 4: Simplify right side
    336,220.80x = 157,654,538,317.44
  5. Step 5: Solve for x
    x = 157,654,538,317.44/336,220.80
  6. Step 6: Final answer
    x = 468,901.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.