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Finding the Fourth Proportional to 572,793.04, 790,454.40 and 318,167.92

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Solution

The fourth proportional to 572,793.04, 790,454.40 and 318,167.92 is: 439,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,793.04 : 790,454.40 = 318,167.92 : x
  2. Step 2: Convert to fraction form
    572,793.04/790,454.40 = 318,167.92/x
  3. Step 3: Cross multiply
    572,793.04x = 790,454.40 × 318,167.92
  4. Step 4: Simplify right side
    572,793.04x = 251,497,232,302.85
  5. Step 5: Solve for x
    x = 251,497,232,302.85/572,793.04
  6. Step 6: Final answer
    x = 439,071.73

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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.