Home / 455,280.98-682,921.46-219,084.98

Finding the Fourth Proportional to 455,280.98, 682,921.46 and 219,084.98

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Solution

The fourth proportional to 455,280.98, 682,921.46 and 219,084.98 is: 328,627.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,280.98 : 682,921.46 = 219,084.98 : x
  2. Step 2: Convert to fraction form
    455,280.98/682,921.46 = 219,084.98/x
  3. Step 3: Cross multiply
    455,280.98x = 682,921.46 × 219,084.98
  4. Step 4: Simplify right side
    455,280.98x = 149,617,831,538.78
  5. Step 5: Solve for x
    x = 149,617,831,538.78/455,280.98
  6. Step 6: Final answer
    x = 328,627.46

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Double scale
Find fourth proportional to 455,281.98, 682,922.96 and 219,085.98
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.