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Finding the Fourth Proportional to 425,844.73, 638,741.85 and 159,582.88

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Solution

The fourth proportional to 425,844.73, 638,741.85 and 159,582.88 is: 239,364.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,844.73 : 638,741.85 = 159,582.88 : x
  2. Step 2: Convert to fraction form
    425,844.73/638,741.85 = 159,582.88/x
  3. Step 3: Cross multiply
    425,844.73x = 638,741.85 × 159,582.88
  4. Step 4: Simplify right side
    425,844.73x = 101,932,263,999.53
  5. Step 5: Solve for x
    x = 101,932,263,999.53/425,844.73
  6. Step 6: Final answer
    x = 239,364.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.