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Finding the Fourth Proportional to 329,318.61, 454,461.56 and 178,415.61

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Solution

The fourth proportional to 329,318.61, 454,461.56 and 178,415.61 is: 246,214.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,318.61 : 454,461.56 = 178,415.61 : x
  2. Step 2: Convert to fraction form
    329,318.61/454,461.56 = 178,415.61/x
  3. Step 3: Cross multiply
    329,318.61x = 454,461.56 × 178,415.61
  4. Step 4: Simplify right side
    329,318.61x = 81,083,035,556.87
  5. Step 5: Solve for x
    x = 81,083,035,556.87/329,318.61
  6. Step 6: Final answer
    x = 246,214.56

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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.