Home / 1,255,803.40-1,883,705.10-414,310.60

Finding the Fourth Proportional to 1,255,803.40, 1,883,705.10 and 414,310.60

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Solution

The fourth proportional to 1,255,803.40, 1,883,705.10 and 414,310.60 is: 621,465.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,803.40 : 1,883,705.10 = 414,310.60 : x
  2. Step 2: Convert to fraction form
    1,255,803.40/1,883,705.10 = 414,310.60/x
  3. Step 3: Cross multiply
    1,255,803.40x = 1,883,705.10 × 414,310.60
  4. Step 4: Simplify right side
    1,255,803.40x = 780,438,990,204.06
  5. Step 5: Solve for x
    x = 780,438,990,204.06/1,255,803.40
  6. Step 6: Final answer
    x = 621,465.90

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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.