Home / 894,858.20-1,234,904.52-492,450.20

Finding the Fourth Proportional to 894,858.20, 1,234,904.52 and 492,450.20

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Solution

The fourth proportional to 894,858.20, 1,234,904.52 and 492,450.20 is: 679,581.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,858.20 : 1,234,904.52 = 492,450.20 : x
  2. Step 2: Convert to fraction form
    894,858.20/1,234,904.52 = 492,450.20/x
  3. Step 3: Cross multiply
    894,858.20x = 1,234,904.52 × 492,450.20
  4. Step 4: Simplify right side
    894,858.20x = 608,128,971,680.38
  5. Step 5: Solve for x
    x = 608,128,971,680.38/894,858.20
  6. Step 6: Final answer
    x = 679,581.39

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Half scale
Find fourth proportional to 1,789,716.39, 2,469,809.04 and 984,900.39
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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.