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Finding the Fourth Proportional to 317,659.01, 478,771.79 and 273,814.92

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Solution

The fourth proportional to 317,659.01, 478,771.79 and 273,814.92 is: 412,690.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,659.01 : 478,771.79 = 273,814.92 : x
  2. Step 2: Convert to fraction form
    317,659.01/478,771.79 = 273,814.92/x
  3. Step 3: Cross multiply
    317,659.01x = 478,771.79 × 273,814.92
  4. Step 4: Simplify right side
    317,659.01x = 131,094,858,008.03
  5. Step 5: Solve for x
    x = 131,094,858,008.03/317,659.01
  6. Step 6: Final answer
    x = 412,690.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.