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Finding the Fourth Proportional to 493,997.50, 681,340.39 and 425,204.05

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Solution

The fourth proportional to 493,997.50, 681,340.39 and 425,204.05 is: 586,457.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,997.50 : 681,340.39 = 425,204.05 : x
  2. Step 2: Convert to fraction form
    493,997.50/681,340.39 = 425,204.05/x
  3. Step 3: Cross multiply
    493,997.50x = 681,340.39 × 425,204.05
  4. Step 4: Simplify right side
    493,997.50x = 289,708,693,256.58
  5. Step 5: Solve for x
    x = 289,708,693,256.58/493,997.50
  6. Step 6: Final answer
    x = 586,457.81

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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.