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Finding the Fourth Proportional to 504,978.60, 696,576.60 and 323,626.08

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Solution

The fourth proportional to 504,978.60, 696,576.60 and 323,626.08 is: 446,415.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,978.60 : 696,576.60 = 323,626.08 : x
  2. Step 2: Convert to fraction form
    504,978.60/696,576.60 = 323,626.08/x
  3. Step 3: Cross multiply
    504,978.60x = 696,576.60 × 323,626.08
  4. Step 4: Simplify right side
    504,978.60x = 225,430,354,477.73
  5. Step 5: Solve for x
    x = 225,430,354,477.73/504,978.60
  6. Step 6: Final answer
    x = 446,415.66

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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.