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Finding the Fourth Proportional to 427,482.72, 589,943.52 and 236,493

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Solution

The fourth proportional to 427,482.72, 589,943.52 and 236,493 is: 326,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,482.72 : 589,943.52 = 236,493 : x
  2. Step 2: Convert to fraction form
    427,482.72/589,943.52 = 236,493/x
  3. Step 3: Cross multiply
    427,482.72x = 589,943.52 × 236,493
  4. Step 4: Simplify right side
    427,482.72x = 139,517,512,875.36
  5. Step 5: Solve for x
    x = 139,517,512,875.36/427,482.72
  6. Step 6: Final answer
    x = 326,369.95

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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.