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Finding the Fourth Proportional to 427,392.84, 589,798.38 and 236,402.12

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Solution

The fourth proportional to 427,392.84, 589,798.38 and 236,402.12 is: 326,232.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,392.84 : 589,798.38 = 236,402.12 : x
  2. Step 2: Convert to fraction form
    427,392.84/589,798.38 = 236,402.12/x
  3. Step 3: Cross multiply
    427,392.84x = 589,798.38 × 236,402.12
  4. Step 4: Simplify right side
    427,392.84x = 139,429,587,404.57
  5. Step 5: Solve for x
    x = 139,429,587,404.57/427,392.84
  6. Step 6: Final answer
    x = 326,232.86

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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.