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Finding the Fourth Proportional to 504,581.04, 696,286.26 and 278,221.68

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Solution

The fourth proportional to 504,581.04, 696,286.26 and 278,221.68 is: 383,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,581.04 : 696,286.26 = 278,221.68 : x
  2. Step 2: Convert to fraction form
    504,581.04/696,286.26 = 278,221.68/x
  3. Step 3: Cross multiply
    504,581.04x = 696,286.26 × 278,221.68
  4. Step 4: Simplify right side
    504,581.04x = 193,721,933,018.12
  5. Step 5: Solve for x
    x = 193,721,933,018.12/504,581.04
  6. Step 6: Final answer
    x = 383,926.30

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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.