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Finding the Fourth Proportional to 493,994.05, 681,335.65 and 425,200.59

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Solution

The fourth proportional to 493,994.05, 681,335.65 and 425,200.59 is: 586,453.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,994.05 : 681,335.65 = 425,200.59 : x
  2. Step 2: Convert to fraction form
    493,994.05/681,335.65 = 425,200.59/x
  3. Step 3: Cross multiply
    493,994.05x = 681,335.65 × 425,200.59
  4. Step 4: Simplify right side
    493,994.05x = 289,704,323,454.54
  5. Step 5: Solve for x
    x = 289,704,323,454.54/493,994.05
  6. Step 6: Final answer
    x = 586,453.06

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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.