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Finding the Fourth Proportional to 329,314.98, 454,455.15 and 178,411.98

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Solution

The fourth proportional to 329,314.98, 454,455.15 and 178,411.98 is: 246,208.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,314.98 : 454,455.15 = 178,411.98 : x
  2. Step 2: Convert to fraction form
    329,314.98/454,455.15 = 178,411.98/x
  3. Step 3: Cross multiply
    329,314.98x = 454,455.15 × 178,411.98
  4. Step 4: Simplify right side
    329,314.98x = 81,080,243,132.70
  5. Step 5: Solve for x
    x = 81,080,243,132.70/329,314.98
  6. Step 6: Final answer
    x = 246,208.79

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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.