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Finding the Fourth Proportional to 572,843.36, 790,523.52 and 318,218.24

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Solution

The fourth proportional to 572,843.36, 790,523.52 and 318,218.24 is: 439,141.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,843.36 : 790,523.52 = 318,218.24 : x
  2. Step 2: Convert to fraction form
    572,843.36/790,523.52 = 318,218.24/x
  3. Step 3: Cross multiply
    572,843.36x = 790,523.52 × 318,218.24
  4. Step 4: Simplify right side
    572,843.36x = 251,559,003,213.01
  5. Step 5: Solve for x
    x = 251,559,003,213.01/572,843.36
  6. Step 6: Final answer
    x = 439,141.00

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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.