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Finding the Fourth Proportional to 533,346.99, 800,021.25 and 217,803.89

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Solution

The fourth proportional to 533,346.99, 800,021.25 and 217,803.89 is: 326,706.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,346.99 : 800,021.25 = 217,803.89 : x
  2. Step 2: Convert to fraction form
    533,346.99/800,021.25 = 217,803.89/x
  3. Step 3: Cross multiply
    533,346.99x = 800,021.25 × 217,803.89
  4. Step 4: Simplify right side
    533,346.99x = 174,247,742,332.72
  5. Step 5: Solve for x
    x = 174,247,742,332.72/533,346.99
  6. Step 6: Final answer
    x = 326,706.15

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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.