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Finding the Fourth Proportional to 308,573.28, 460,809.26 and 305,233.12

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Solution

The fourth proportional to 308,573.28, 460,809.26 and 305,233.12 is: 455,821.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,573.28 : 460,809.26 = 305,233.12 : x
  2. Step 2: Convert to fraction form
    308,573.28/460,809.26 = 305,233.12/x
  3. Step 3: Cross multiply
    308,573.28x = 460,809.26 × 305,233.12
  4. Step 4: Simplify right side
    308,573.28x = 140,654,248,154.69
  5. Step 5: Solve for x
    x = 140,654,248,154.69/308,573.28
  6. Step 6: Final answer
    x = 455,821.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.