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Finding the Fourth Proportional to 572,794.02, 790,433.64 and 318,161.34

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Solution

The fourth proportional to 572,794.02, 790,433.64 and 318,161.34 is: 439,050.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,794.02 : 790,433.64 = 318,161.34 : x
  2. Step 2: Convert to fraction form
    572,794.02/790,433.64 = 318,161.34/x
  3. Step 3: Cross multiply
    572,794.02x = 790,433.64 × 318,161.34
  4. Step 4: Simplify right side
    572,794.02x = 251,485,426,083.48
  5. Step 5: Solve for x
    x = 251,485,426,083.48/572,794.02
  6. Step 6: Final answer
    x = 439,050.37

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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.