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Finding the Fourth Proportional to 308,713.70, 463,362.15 and 190,615.70

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Solution

The fourth proportional to 308,713.70, 463,362.15 and 190,615.70 is: 286,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,713.70 : 463,362.15 = 190,615.70 : x
  2. Step 2: Convert to fraction form
    308,713.70/463,362.15 = 190,615.70/x
  3. Step 3: Cross multiply
    308,713.70x = 463,362.15 × 190,615.70
  4. Step 4: Simplify right side
    308,713.70x = 88,324,100,575.76
  5. Step 5: Solve for x
    x = 88,324,100,575.76/308,713.70
  6. Step 6: Final answer
    x = 286,103.60

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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.