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Finding the Fourth Proportional to 437,442.78, 603,670.98 and 236,238.78

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Solution

The fourth proportional to 437,442.78, 603,670.98 and 236,238.78 is: 326,009.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,442.78 : 603,670.98 = 236,238.78 : x
  2. Step 2: Convert to fraction form
    437,442.78/603,670.98 = 236,238.78/x
  3. Step 3: Cross multiply
    437,442.78x = 603,670.98 × 236,238.78
  4. Step 4: Simplify right side
    437,442.78x = 142,610,495,836.60
  5. Step 5: Solve for x
    x = 142,610,495,836.60/437,442.78
  6. Step 6: Final answer
    x = 326,009.49

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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.