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Finding the Fourth Proportional to 445,672.48, 615,266.32 and 348,670.14

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Solution

The fourth proportional to 445,672.48, 615,266.32 and 348,670.14 is: 481,351.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,672.48 : 615,266.32 = 348,670.14 : x
  2. Step 2: Convert to fraction form
    445,672.48/615,266.32 = 348,670.14/x
  3. Step 3: Cross multiply
    445,672.48x = 615,266.32 × 348,670.14
  4. Step 4: Simplify right side
    445,672.48x = 214,524,996,107.51
  5. Step 5: Solve for x
    x = 214,524,996,107.51/445,672.48
  6. Step 6: Final answer
    x = 481,351.23

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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.