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Finding the Fourth Proportional to 236,415.40, 354,623.10 and 189,759.40

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Solution

The fourth proportional to 236,415.40, 354,623.10 and 189,759.40 is: 284,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,415.40 : 354,623.10 = 189,759.40 : x
  2. Step 2: Convert to fraction form
    236,415.40/354,623.10 = 189,759.40/x
  3. Step 3: Cross multiply
    236,415.40x = 354,623.10 × 189,759.40
  4. Step 4: Simplify right side
    236,415.40x = 67,293,066,682.14
  5. Step 5: Solve for x
    x = 67,293,066,682.14/236,415.40
  6. Step 6: Final answer
    x = 284,639.10

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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.