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Finding the Fourth Proportional to 613,853.66, 920,834.46 and 187,485.72

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Solution

The fourth proportional to 613,853.66, 920,834.46 and 187,485.72 is: 281,245.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,853.66 : 920,834.46 = 187,485.72 : x
  2. Step 2: Convert to fraction form
    613,853.66/920,834.46 = 187,485.72/x
  3. Step 3: Cross multiply
    613,853.66x = 920,834.46 × 187,485.72
  4. Step 4: Simplify right side
    613,853.66x = 172,643,311,733.91
  5. Step 5: Solve for x
    x = 172,643,311,733.91/613,853.66
  6. Step 6: Final answer
    x = 281,245.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.