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Finding the Fourth Proportional to 575,661.96, 794,416.50 and 321,023.88

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Solution

The fourth proportional to 575,661.96, 794,416.50 and 321,023.88 is: 443,014.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,661.96 : 794,416.50 = 321,023.88 : x
  2. Step 2: Convert to fraction form
    575,661.96/794,416.50 = 321,023.88/x
  3. Step 3: Cross multiply
    575,661.96x = 794,416.50 × 321,023.88
  4. Step 4: Simplify right side
    575,661.96x = 255,026,667,166.02
  5. Step 5: Solve for x
    x = 255,026,667,166.02/575,661.96
  6. Step 6: Final answer
    x = 443,014.62

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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.