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Finding the Fourth Proportional to 574,909.20, 793,398.60 and 320,260.32

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Solution

The fourth proportional to 574,909.20, 793,398.60 and 320,260.32 is: 441,972.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,909.20 : 793,398.60 = 320,260.32 : x
  2. Step 2: Convert to fraction form
    574,909.20/793,398.60 = 320,260.32/x
  3. Step 3: Cross multiply
    574,909.20x = 793,398.60 × 320,260.32
  4. Step 4: Simplify right side
    574,909.20x = 254,094,089,523.55
  5. Step 5: Solve for x
    x = 254,094,089,523.55/574,909.20
  6. Step 6: Final answer
    x = 441,972.56

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1.5x scale

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.