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Finding the Fourth Proportional to 393,196.60, 589,794.90 and 362,783.80

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Solution

The fourth proportional to 393,196.60, 589,794.90 and 362,783.80 is: 544,175.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,196.60 : 589,794.90 = 362,783.80 : x
  2. Step 2: Convert to fraction form
    393,196.60/589,794.90 = 362,783.80/x
  3. Step 3: Cross multiply
    393,196.60x = 589,794.90 × 362,783.80
  4. Step 4: Simplify right side
    393,196.60x = 213,968,035,042.62
  5. Step 5: Solve for x
    x = 213,968,035,042.62/393,196.60
  6. Step 6: Final answer
    x = 544,175.70

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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.