Home / 830,464.20-1,245,696.30-620,512.20

Finding the Fourth Proportional to 830,464.20, 1,245,696.30 and 620,512.20

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Solution

The fourth proportional to 830,464.20, 1,245,696.30 and 620,512.20 is: 930,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,464.20 : 1,245,696.30 = 620,512.20 : x
  2. Step 2: Convert to fraction form
    830,464.20/1,245,696.30 = 620,512.20/x
  3. Step 3: Cross multiply
    830,464.20x = 1,245,696.30 × 620,512.20
  4. Step 4: Simplify right side
    830,464.20x = 772,969,751,644.86
  5. Step 5: Solve for x
    x = 772,969,751,644.86/830,464.20
  6. Step 6: Final answer
    x = 930,768.30

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Half scale
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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.