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Finding the Fourth Proportional to 313,589.64, 432,658.35 and 177,601.98

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Solution

The fourth proportional to 313,589.64, 432,658.35 and 177,601.98 is: 245,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,589.64 : 432,658.35 = 177,601.98 : x
  2. Step 2: Convert to fraction form
    313,589.64/432,658.35 = 177,601.98/x
  3. Step 3: Cross multiply
    313,589.64x = 432,658.35 × 177,601.98
  4. Step 4: Simplify right side
    313,589.64x = 76,840,979,623.53
  5. Step 5: Solve for x
    x = 76,840,979,623.53/313,589.64
  6. Step 6: Final answer
    x = 245,036.73

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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.