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Finding the Fourth Proportional to 321,774.32, 482,511.33 and 119,362.28

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Solution

The fourth proportional to 321,774.32, 482,511.33 and 119,362.28 is: 178,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,774.32 : 482,511.33 = 119,362.28 : x
  2. Step 2: Convert to fraction form
    321,774.32/482,511.33 = 119,362.28/x
  3. Step 3: Cross multiply
    321,774.32x = 482,511.33 × 119,362.28
  4. Step 4: Simplify right side
    321,774.32x = 57,593,650,062.08
  5. Step 5: Solve for x
    x = 57,593,650,062.08/321,774.32
  6. Step 6: Final answer
    x = 178,987.71

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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.