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Finding the Fourth Proportional to 439,615.25, 606,709.34 and 276,298.29

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Solution

The fourth proportional to 439,615.25, 606,709.34 and 276,298.29 is: 381,316.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,615.25 : 606,709.34 = 276,298.29 : x
  2. Step 2: Convert to fraction form
    439,615.25/606,709.34 = 276,298.29/x
  3. Step 3: Cross multiply
    439,615.25x = 606,709.34 × 276,298.29
  4. Step 4: Simplify right side
    439,615.25x = 167,632,752,823.66
  5. Step 5: Solve for x
    x = 167,632,752,823.66/439,615.25
  6. Step 6: Final answer
    x = 381,316.97

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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.