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Finding the Fourth Proportional to 308,618.66, 462,881.21 and 83,996.59

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Solution

The fourth proportional to 308,618.66, 462,881.21 and 83,996.59 is: 125,982.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,618.66 : 462,881.21 = 83,996.59 : x
  2. Step 2: Convert to fraction form
    308,618.66/462,881.21 = 83,996.59/x
  3. Step 3: Cross multiply
    308,618.66x = 462,881.21 × 83,996.59
  4. Step 4: Simplify right side
    308,618.66x = 38,880,443,215.07
  5. Step 5: Solve for x
    x = 38,880,443,215.07/308,618.66
  6. Step 6: Final answer
    x = 125,982.15

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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.