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Finding the Fourth Proportional to 447,052.72, 616,948.97 and 256,103.01

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Solution

The fourth proportional to 447,052.72, 616,948.97 and 256,103.01 is: 353,431.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,052.72 : 616,948.97 = 256,103.01 : x
  2. Step 2: Convert to fraction form
    447,052.72/616,948.97 = 256,103.01/x
  3. Step 3: Cross multiply
    447,052.72x = 616,948.97 × 256,103.01
  4. Step 4: Simplify right side
    447,052.72x = 158,002,489,550.24
  5. Step 5: Solve for x
    x = 158,002,489,550.24/447,052.72
  6. Step 6: Final answer
    x = 353,431.45

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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.