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Finding the Fourth Proportional to 427,672.66, 590,136.57 and 236,674.66

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Solution

The fourth proportional to 427,672.66, 590,136.57 and 236,674.66 is: 326,582.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,672.66 : 590,136.57 = 236,674.66 : x
  2. Step 2: Convert to fraction form
    427,672.66/590,136.57 = 236,674.66/x
  3. Step 3: Cross multiply
    427,672.66x = 590,136.57 × 236,674.66
  4. Step 4: Simplify right side
    427,672.66x = 139,670,372,058.32
  5. Step 5: Solve for x
    x = 139,670,372,058.32/427,672.66
  6. Step 6: Final answer
    x = 326,582.42

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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.