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Finding the Fourth Proportional to 236,442.40, 354,663.60 and 189,786.40

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Solution

The fourth proportional to 236,442.40, 354,663.60 and 189,786.40 is: 284,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,442.40 : 354,663.60 = 189,786.40 : x
  2. Step 2: Convert to fraction form
    236,442.40/354,663.60 = 189,786.40/x
  3. Step 3: Cross multiply
    236,442.40x = 354,663.60 × 189,786.40
  4. Step 4: Simplify right side
    236,442.40x = 67,310,327,855.04
  5. Step 5: Solve for x
    x = 67,310,327,855.04/236,442.40
  6. Step 6: Final answer
    x = 284,679.60

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1.5x scale

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.