Home / 943,907.60-1,415,861.40-279,059.60

Finding the Fourth Proportional to 943,907.60, 1,415,861.40 and 279,059.60

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Solution

The fourth proportional to 943,907.60, 1,415,861.40 and 279,059.60 is: 418,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,907.60 : 1,415,861.40 = 279,059.60 : x
  2. Step 2: Convert to fraction form
    943,907.60/1,415,861.40 = 279,059.60/x
  3. Step 3: Cross multiply
    943,907.60x = 1,415,861.40 × 279,059.60
  4. Step 4: Simplify right side
    943,907.60x = 395,109,715,939.44
  5. Step 5: Solve for x
    x = 395,109,715,939.44/943,907.60
  6. Step 6: Final answer
    x = 418,589.40

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Double scale
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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.