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Finding the Fourth Proportional to 638,502.58, 957,894.03 and 189,258.10

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Solution

The fourth proportional to 638,502.58, 957,894.03 and 189,258.10 is: 283,928.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,502.58 : 957,894.03 = 189,258.10 : x
  2. Step 2: Convert to fraction form
    638,502.58/957,894.03 = 189,258.10/x
  3. Step 3: Cross multiply
    638,502.58x = 957,894.03 × 189,258.10
  4. Step 4: Simplify right side
    638,502.58x = 181,289,204,119.14
  5. Step 5: Solve for x
    x = 181,289,204,119.14/638,502.58
  6. Step 6: Final answer
    x = 283,928.69

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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.