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Finding the Fourth Proportional to 504,449.13, 696,145.19 and 278,102.73

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Solution

The fourth proportional to 504,449.13, 696,145.19 and 278,102.73 is: 383,784.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,449.13 : 696,145.19 = 278,102.73 : x
  2. Step 2: Convert to fraction form
    504,449.13/696,145.19 = 278,102.73/x
  3. Step 3: Cross multiply
    504,449.13x = 696,145.19 × 278,102.73
  4. Step 4: Simplify right side
    504,449.13x = 193,599,876,424.86
  5. Step 5: Solve for x
    x = 193,599,876,424.86/504,449.13
  6. Step 6: Final answer
    x = 383,784.74

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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.