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Finding the Fourth Proportional to 487,076.44, 672,169.44 and 272,225.56

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Solution

The fourth proportional to 487,076.44, 672,169.44 and 272,225.56 is: 375,673.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,076.44 : 672,169.44 = 272,225.56 : x
  2. Step 2: Convert to fraction form
    487,076.44/672,169.44 = 272,225.56/x
  3. Step 3: Cross multiply
    487,076.44x = 672,169.44 × 272,225.56
  4. Step 4: Simplify right side
    487,076.44x = 182,981,702,218.89
  5. Step 5: Solve for x
    x = 182,981,702,218.89/487,076.44
  6. Step 6: Final answer
    x = 375,673.48

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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.