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Finding the Fourth Proportional to 281,778.96, 388,894.80 and 174,383.60

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Solution

The fourth proportional to 281,778.96, 388,894.80 and 174,383.60 is: 240,674.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,778.96 : 388,894.80 = 174,383.60 : x
  2. Step 2: Convert to fraction form
    281,778.96/388,894.80 = 174,383.60/x
  3. Step 3: Cross multiply
    281,778.96x = 388,894.80 × 174,383.60
  4. Step 4: Simplify right side
    281,778.96x = 67,816,875,245.28
  5. Step 5: Solve for x
    x = 67,816,875,245.28/281,778.96
  6. Step 6: Final answer
    x = 240,674.02

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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.