Home / 456,815.60-683,279.40-409,770.80

Finding the Fourth Proportional to 456,815.60, 683,279.40 and 409,770.80

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Solution

The fourth proportional to 456,815.60, 683,279.40 and 409,770.80 is: 612,912.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,815.60 : 683,279.40 = 409,770.80 : x
  2. Step 2: Convert to fraction form
    456,815.60/683,279.40 = 409,770.80/x
  3. Step 3: Cross multiply
    456,815.60x = 683,279.40 × 409,770.80
  4. Step 4: Simplify right side
    456,815.60x = 279,987,946,361.52
  5. Step 5: Solve for x
    x = 279,987,946,361.52/456,815.60
  6. Step 6: Final answer
    x = 612,912.40

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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.