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Finding the Fourth Proportional to 524,321.20, 786,481.80 and 335,364.40

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Solution

The fourth proportional to 524,321.20, 786,481.80 and 335,364.40 is: 503,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,321.20 : 786,481.80 = 335,364.40 : x
  2. Step 2: Convert to fraction form
    524,321.20/786,481.80 = 335,364.40/x
  3. Step 3: Cross multiply
    524,321.20x = 786,481.80 × 335,364.40
  4. Step 4: Simplify right side
    524,321.20x = 263,757,996,967.92
  5. Step 5: Solve for x
    x = 263,757,996,967.92/524,321.20
  6. Step 6: Final answer
    x = 503,046.60

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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.