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Finding the Fourth Proportional to 370,908.56, 511,881.30 and 207,581.43

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Solution

The fourth proportional to 370,908.56, 511,881.30 and 207,581.43 is: 286,477.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,908.56 : 511,881.30 = 207,581.43 : x
  2. Step 2: Convert to fraction form
    370,908.56/511,881.30 = 207,581.43/x
  3. Step 3: Cross multiply
    370,908.56x = 511,881.30 × 207,581.43
  4. Step 4: Simplify right side
    370,908.56x = 106,257,052,244.26
  5. Step 5: Solve for x
    x = 106,257,052,244.26/370,908.56
  6. Step 6: Final answer
    x = 286,477.76

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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.