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Finding the Fourth Proportional to 267,718.24, 399,390.28 and 248,628.16

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Solution

The fourth proportional to 267,718.24, 399,390.28 and 248,628.16 is: 370,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,718.24 : 399,390.28 = 248,628.16 : x
  2. Step 2: Convert to fraction form
    267,718.24/399,390.28 = 248,628.16/x
  3. Step 3: Cross multiply
    267,718.24x = 399,390.28 × 248,628.16
  4. Step 4: Simplify right side
    267,718.24x = 99,299,670,438.28
  5. Step 5: Solve for x
    x = 99,299,670,438.28/267,718.24
  6. Step 6: Final answer
    x = 370,911.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.