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Finding the Fourth Proportional to 378,797.40, 568,852.20 and 366,987.60

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Solution

The fourth proportional to 378,797.40, 568,852.20 and 366,987.60 is: 551,117.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,797.40 : 568,852.20 = 366,987.60 : x
  2. Step 2: Convert to fraction form
    378,797.40/568,852.20 = 366,987.60/x
  3. Step 3: Cross multiply
    378,797.40x = 568,852.20 × 366,987.60
  4. Step 4: Simplify right side
    378,797.40x = 208,761,703,632.72
  5. Step 5: Solve for x
    x = 208,761,703,632.72/378,797.40
  6. Step 6: Final answer
    x = 551,117.04

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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.