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Finding the Fourth Proportional to 277,998.80, 416,998.20 and 265,864.40

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Solution

The fourth proportional to 277,998.80, 416,998.20 and 265,864.40 is: 398,796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,998.80 : 416,998.20 = 265,864.40 : x
  2. Step 2: Convert to fraction form
    277,998.80/416,998.20 = 265,864.40/x
  3. Step 3: Cross multiply
    277,998.80x = 416,998.20 × 265,864.40
  4. Step 4: Simplify right side
    277,998.80x = 110,864,976,244.08
  5. Step 5: Solve for x
    x = 110,864,976,244.08/277,998.80
  6. Step 6: Final answer
    x = 398,796.60

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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.