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Finding the Fourth Proportional to 324,999.60, 487,499.40 and 283,527.60

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Solution

The fourth proportional to 324,999.60, 487,499.40 and 283,527.60 is: 425,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,999.60 : 487,499.40 = 283,527.60 : x
  2. Step 2: Convert to fraction form
    324,999.60/487,499.40 = 283,527.60/x
  3. Step 3: Cross multiply
    324,999.60x = 487,499.40 × 283,527.60
  4. Step 4: Simplify right side
    324,999.60x = 138,219,534,883.44
  5. Step 5: Solve for x
    x = 138,219,534,883.44/324,999.60
  6. Step 6: Final answer
    x = 425,291.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.