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Finding the Fourth Proportional to 504,483.93, 696,183.21 and 278,129.43

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Solution

The fourth proportional to 504,483.93, 696,183.21 and 278,129.43 is: 383,816.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,483.93 : 696,183.21 = 278,129.43 : x
  2. Step 2: Convert to fraction form
    504,483.93/696,183.21 = 278,129.43/x
  3. Step 3: Cross multiply
    504,483.93x = 696,183.21 × 278,129.43
  4. Step 4: Simplify right side
    504,483.93x = 193,629,039,372.87
  5. Step 5: Solve for x
    x = 193,629,039,372.87/504,483.93
  6. Step 6: Final answer
    x = 383,816.07

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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.