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Finding the Fourth Proportional to 668,855.00, 923,017.13 and 397,146.56

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Solution

The fourth proportional to 668,855.00, 923,017.13 and 397,146.56 is: 548,060.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,855.00 : 923,017.13 = 397,146.56 : x
  2. Step 2: Convert to fraction form
    668,855.00/923,017.13 = 397,146.56/x
  3. Step 3: Cross multiply
    668,855.00x = 923,017.13 × 397,146.56
  4. Step 4: Simplify right side
    668,855.00x = 366,573,082,659.31
  5. Step 5: Solve for x
    x = 366,573,082,659.31/668,855.00
  6. Step 6: Final answer
    x = 548,060.61

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1.5x scale

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.