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Finding the Fourth Proportional to 438,994.48, 605,814.24 and 237,790.48

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Solution

The fourth proportional to 438,994.48, 605,814.24 and 237,790.48 is: 328,151.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,994.48 : 605,814.24 = 237,790.48 : x
  2. Step 2: Convert to fraction form
    438,994.48/605,814.24 = 237,790.48/x
  3. Step 3: Cross multiply
    438,994.48x = 605,814.24 × 237,790.48
  4. Step 4: Simplify right side
    438,994.48x = 144,056,858,920.44
  5. Step 5: Solve for x
    x = 144,056,858,920.44/438,994.48
  6. Step 6: Final answer
    x = 328,151.87

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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.