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Finding the Fourth Proportional to 439,766.41, 606,878.81 and 238,562.41

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Solution

The fourth proportional to 439,766.41, 606,878.81 and 238,562.41 is: 329,216.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,766.41 : 606,878.81 = 238,562.41 : x
  2. Step 2: Convert to fraction form
    439,766.41/606,878.81 = 238,562.41/x
  3. Step 3: Cross multiply
    439,766.41x = 606,878.81 × 238,562.41
  4. Step 4: Simplify right side
    439,766.41x = 144,778,471,491.53
  5. Step 5: Solve for x
    x = 144,778,471,491.53/439,766.41
  6. Step 6: Final answer
    x = 329,216.76

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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.