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Finding the Fourth Proportional to 323,087.40, 484,436.70 and 165,623.40

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Solution

The fourth proportional to 323,087.40, 484,436.70 and 165,623.40 is: 248,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,087.40 : 484,436.70 = 165,623.40 : x
  2. Step 2: Convert to fraction form
    323,087.40/484,436.70 = 165,623.40/x
  3. Step 3: Cross multiply
    323,087.40x = 484,436.70 × 165,623.40
  4. Step 4: Simplify right side
    323,087.40x = 80,234,053,338.78
  5. Step 5: Solve for x
    x = 80,234,053,338.78/323,087.40
  6. Step 6: Final answer
    x = 248,335.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.