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Finding the Fourth Proportional to 573,238.08, 790,514.64 and 379,557.36

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Solution

The fourth proportional to 573,238.08, 790,514.64 and 379,557.36 is: 523,422.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,238.08 : 790,514.64 = 379,557.36 : x
  2. Step 2: Convert to fraction form
    573,238.08/790,514.64 = 379,557.36/x
  3. Step 3: Cross multiply
    573,238.08x = 790,514.64 × 379,557.36
  4. Step 4: Simplify right side
    573,238.08x = 300,045,649,799.75
  5. Step 5: Solve for x
    x = 300,045,649,799.75/573,238.08
  6. Step 6: Final answer
    x = 523,422.40

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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.