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Finding the Fourth Proportional to 352,580.40, 485,886.87 and 346,102.02

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Solution

The fourth proportional to 352,580.40, 485,886.87 and 346,102.02 is: 476,959.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,580.40 : 485,886.87 = 346,102.02 : x
  2. Step 2: Convert to fraction form
    352,580.40/485,886.87 = 346,102.02/x
  3. Step 3: Cross multiply
    352,580.40x = 485,886.87 × 346,102.02
  4. Step 4: Simplify right side
    352,580.40x = 168,166,427,198.48
  5. Step 5: Solve for x
    x = 168,166,427,198.48/352,580.40
  6. Step 6: Final answer
    x = 476,959.09

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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.