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Finding the Fourth Proportional to 333,112.54, 499,664.34 and 80,390.92

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Solution

The fourth proportional to 333,112.54, 499,664.34 and 80,390.92 is: 120,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,112.54 : 499,664.34 = 80,390.92 : x
  2. Step 2: Convert to fraction form
    333,112.54/499,664.34 = 80,390.92/x
  3. Step 3: Cross multiply
    333,112.54x = 499,664.34 × 80,390.92
  4. Step 4: Simplify right side
    333,112.54x = 40,168,475,983.79
  5. Step 5: Solve for x
    x = 40,168,475,983.79/333,112.54
  6. Step 6: Final answer
    x = 120,585.30

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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.