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Finding the Fourth Proportional to 334,499.79, 501,535.83 and 220,515.78

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Solution

The fourth proportional to 334,499.79, 501,535.83 and 220,515.78 is: 330,632.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,499.79 : 501,535.83 = 220,515.78 : x
  2. Step 2: Convert to fraction form
    334,499.79/501,535.83 = 220,515.78/x
  3. Step 3: Cross multiply
    334,499.79x = 501,535.83 × 220,515.78
  4. Step 4: Simplify right side
    334,499.79x = 110,596,564,750.40
  5. Step 5: Solve for x
    x = 110,596,564,750.40/334,499.79
  6. Step 6: Final answer
    x = 330,632.69

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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.