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Finding the Fourth Proportional to 333,717.87, 500,571.50 and 81,000.45

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Solution

The fourth proportional to 333,717.87, 500,571.50 and 81,000.45 is: 121,499.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,717.87 : 500,571.50 = 81,000.45 : x
  2. Step 2: Convert to fraction form
    333,717.87/500,571.50 = 81,000.45/x
  3. Step 3: Cross multiply
    333,717.87x = 500,571.50 × 81,000.45
  4. Step 4: Simplify right side
    333,717.87x = 40,546,516,757.18
  5. Step 5: Solve for x
    x = 40,546,516,757.18/333,717.87
  6. Step 6: Final answer
    x = 121,499.39

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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.