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Finding the Fourth Proportional to 447,953.40, 618,175.74 and 246,749.40

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Solution

The fourth proportional to 447,953.40, 618,175.74 and 246,749.40 is: 340,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,953.40 : 618,175.74 = 246,749.40 : x
  2. Step 2: Convert to fraction form
    447,953.40/618,175.74 = 246,749.40/x
  3. Step 3: Cross multiply
    447,953.40x = 618,175.74 × 246,749.40
  4. Step 4: Simplify right side
    447,953.40x = 152,534,492,939.56
  5. Step 5: Solve for x
    x = 152,534,492,939.56/447,953.40
  6. Step 6: Final answer
    x = 340,514.20

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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.