Home / 638,511.12-957,859.63-189,173.75

Finding the Fourth Proportional to 638,511.12, 957,859.63 and 189,173.75

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Solution

The fourth proportional to 638,511.12, 957,859.63 and 189,173.75 is: 283,788.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,511.12 : 957,859.63 = 189,173.75 : x
  2. Step 2: Convert to fraction form
    638,511.12/957,859.63 = 189,173.75/x
  3. Step 3: Cross multiply
    638,511.12x = 957,859.63 × 189,173.75
  4. Step 4: Simplify right side
    638,511.12x = 181,201,892,918.48
  5. Step 5: Solve for x
    x = 181,201,892,918.48/638,511.12
  6. Step 6: Final answer
    x = 283,788.16

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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.