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Finding the Fourth Proportional to 448,958.30, 619,791.02 and 346,754.32

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Solution

The fourth proportional to 448,958.30, 619,791.02 and 346,754.32 is: 478,697.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,958.30 : 619,791.02 = 346,754.32 : x
  2. Step 2: Convert to fraction form
    448,958.30/619,791.02 = 346,754.32/x
  3. Step 3: Cross multiply
    448,958.30x = 619,791.02 × 346,754.32
  4. Step 4: Simplify right side
    448,958.30x = 214,915,210,724.03
  5. Step 5: Solve for x
    x = 214,915,210,724.03/448,958.30
  6. Step 6: Final answer
    x = 478,697.49

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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.