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Finding the Fourth Proportional to 468,611.61, 646,687.13 and 253,751.67

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Solution

The fourth proportional to 468,611.61, 646,687.13 and 253,751.67 is: 350,178.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,611.61 : 646,687.13 = 253,751.67 : x
  2. Step 2: Convert to fraction form
    468,611.61/646,687.13 = 253,751.67/x
  3. Step 3: Cross multiply
    468,611.61x = 646,687.13 × 253,751.67
  4. Step 4: Simplify right side
    468,611.61x = 164,097,939,205.01
  5. Step 5: Solve for x
    x = 164,097,939,205.01/468,611.61
  6. Step 6: Final answer
    x = 350,178.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.