Home / 689,277.20-1,033,916.18-215,999.60

Finding the Fourth Proportional to 689,277.20, 1,033,916.18 and 215,999.60

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Solution

The fourth proportional to 689,277.20, 1,033,916.18 and 215,999.60 is: 323,999.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,277.20 : 1,033,916.18 = 215,999.60 : x
  2. Step 2: Convert to fraction form
    689,277.20/1,033,916.18 = 215,999.60/x
  3. Step 3: Cross multiply
    689,277.20x = 1,033,916.18 × 215,999.60
  4. Step 4: Simplify right side
    689,277.20x = 223,325,480,233.53
  5. Step 5: Solve for x
    x = 223,325,480,233.53/689,277.20
  6. Step 6: Final answer
    x = 323,999.52

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Similar ratio
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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.