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Finding the Fourth Proportional to 403,346.40, 604,878.52 and 118,961.32

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Solution

The fourth proportional to 403,346.40, 604,878.52 and 118,961.32 is: 178,400.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,346.40 : 604,878.52 = 118,961.32 : x
  2. Step 2: Convert to fraction form
    403,346.40/604,878.52 = 118,961.32/x
  3. Step 3: Cross multiply
    403,346.40x = 604,878.52 × 118,961.32
  4. Step 4: Simplify right side
    403,346.40x = 71,957,147,178.85
  5. Step 5: Solve for x
    x = 71,957,147,178.85/403,346.40
  6. Step 6: Final answer
    x = 178,400.37

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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.