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Finding the Fourth Proportional to 492,127.91, 738,271.37 and 207,861.19

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Solution

The fourth proportional to 492,127.91, 738,271.37 and 207,861.19 is: 311,825.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,127.91 : 738,271.37 = 207,861.19 : x
  2. Step 2: Convert to fraction form
    492,127.91/738,271.37 = 207,861.19/x
  3. Step 3: Cross multiply
    492,127.91x = 738,271.37 × 207,861.19
  4. Step 4: Simplify right side
    492,127.91x = 153,457,964,471.82
  5. Step 5: Solve for x
    x = 153,457,964,471.82/492,127.91
  6. Step 6: Final answer
    x = 311,825.37

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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.