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Finding the Fourth Proportional to 321,856.70, 483,015.45 and 181,466.30

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Solution

The fourth proportional to 321,856.70, 483,015.45 and 181,466.30 is: 272,329.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,856.70 : 483,015.45 = 181,466.30 : x
  2. Step 2: Convert to fraction form
    321,856.70/483,015.45 = 181,466.30/x
  3. Step 3: Cross multiply
    321,856.70x = 483,015.45 × 181,466.30
  4. Step 4: Simplify right side
    321,856.70x = 87,651,026,554.34
  5. Step 5: Solve for x
    x = 87,651,026,554.34/321,856.70
  6. Step 6: Final answer
    x = 272,329.35

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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.