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Finding the Fourth Proportional to 401,659.48, 601,539.30 and 348,781.60

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Solution

The fourth proportional to 401,659.48, 601,539.30 and 348,781.60 is: 522,347.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,659.48 : 601,539.30 = 348,781.60 : x
  2. Step 2: Convert to fraction form
    401,659.48/601,539.30 = 348,781.60/x
  3. Step 3: Cross multiply
    401,659.48x = 601,539.30 × 348,781.60
  4. Step 4: Simplify right side
    401,659.48x = 209,805,839,516.88
  5. Step 5: Solve for x
    x = 209,805,839,516.88/401,659.48
  6. Step 6: Final answer
    x = 522,347.54

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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.