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Finding the Fourth Proportional to 573,060.56, 790,788.84 and 318,403.04

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Solution

The fourth proportional to 573,060.56, 790,788.84 and 318,403.04 is: 439,376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,060.56 : 790,788.84 = 318,403.04 : x
  2. Step 2: Convert to fraction form
    573,060.56/790,788.84 = 318,403.04/x
  3. Step 3: Cross multiply
    573,060.56x = 790,788.84 × 318,403.04
  4. Step 4: Simplify right side
    573,060.56x = 251,789,570,654.07
  5. Step 5: Solve for x
    x = 251,789,570,654.07/573,060.56
  6. Step 6: Final answer
    x = 439,376.90

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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.