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Finding the Fourth Proportional to 327,323.84, 449,749.36 and 260,139.20

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Solution

The fourth proportional to 327,323.84, 449,749.36 and 260,139.20 is: 357,436.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,323.84 : 449,749.36 = 260,139.20 : x
  2. Step 2: Convert to fraction form
    327,323.84/449,749.36 = 260,139.20/x
  3. Step 3: Cross multiply
    327,323.84x = 449,749.36 × 260,139.20
  4. Step 4: Simplify right side
    327,323.84x = 116,997,438,710.91
  5. Step 5: Solve for x
    x = 116,997,438,710.91/327,323.84
  6. Step 6: Final answer
    x = 357,436.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.