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Finding the Fourth Proportional to 573,514.16, 791,427 and 318,846.80

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Solution

The fourth proportional to 573,514.16, 791,427 and 318,846.80 is: 439,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,514.16 : 791,427 = 318,846.80 : x
  2. Step 2: Convert to fraction form
    573,514.16/791,427 = 318,846.80/x
  3. Step 3: Cross multiply
    573,514.16x = 791,427 × 318,846.80
  4. Step 4: Simplify right side
    573,514.16x = 252,343,966,383.60
  5. Step 5: Solve for x
    x = 252,343,966,383.60/573,514.16
  6. Step 6: Final answer
    x = 439,996.05

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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.