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Finding the Fourth Proportional to 423,033.93, 634,235.30 and 254,514.77

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Solution

The fourth proportional to 423,033.93, 634,235.30 and 254,514.77 is: 381,582.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,033.93 : 634,235.30 = 254,514.77 : x
  2. Step 2: Convert to fraction form
    423,033.93/634,235.30 = 254,514.77/x
  3. Step 3: Cross multiply
    423,033.93x = 634,235.30 × 254,514.77
  4. Step 4: Simplify right side
    423,033.93x = 161,422,251,505.38
  5. Step 5: Solve for x
    x = 161,422,251,505.38/423,033.93
  6. Step 6: Final answer
    x = 381,582.28

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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.