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Finding the Fourth Proportional to 413,796.18, 618,178.78 and 262,827.56

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Solution

The fourth proportional to 413,796.18, 618,178.78 and 262,827.56 is: 392,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,796.18 : 618,178.78 = 262,827.56 : x
  2. Step 2: Convert to fraction form
    413,796.18/618,178.78 = 262,827.56/x
  3. Step 3: Cross multiply
    413,796.18x = 618,178.78 × 262,827.56
  4. Step 4: Simplify right side
    413,796.18x = 162,474,420,391.18
  5. Step 5: Solve for x
    x = 162,474,420,391.18/413,796.18
  6. Step 6: Final answer
    x = 392,643.60

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1.5x scale

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.