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Finding the Fourth Proportional to 486,016.40, 729,024.60 and 335,939.60

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Solution

The fourth proportional to 486,016.40, 729,024.60 and 335,939.60 is: 503,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,016.40 : 729,024.60 = 335,939.60 : x
  2. Step 2: Convert to fraction form
    486,016.40/729,024.60 = 335,939.60/x
  3. Step 3: Cross multiply
    486,016.40x = 729,024.60 × 335,939.60
  4. Step 4: Simplify right side
    486,016.40x = 244,908,232,514.16
  5. Step 5: Solve for x
    x = 244,908,232,514.16/486,016.40
  6. Step 6: Final answer
    x = 503,909.40

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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.