Home / 1,121,137.36-1,680,706.04-410,999.60

Finding the Fourth Proportional to 1,121,137.36, 1,680,706.04 and 410,999.60

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Solution

The fourth proportional to 1,121,137.36, 1,680,706.04 and 410,999.60 is: 616,132.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,137.36 : 1,680,706.04 = 410,999.60 : x
  2. Step 2: Convert to fraction form
    1,121,137.36/1,680,706.04 = 410,999.60/x
  3. Step 3: Cross multiply
    1,121,137.36x = 1,680,706.04 × 410,999.60
  4. Step 4: Simplify right side
    1,121,137.36x = 690,769,510,157.58
  5. Step 5: Solve for x
    x = 690,769,510,157.58/1,121,137.36
  6. Step 6: Final answer
    x = 616,132.81

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Double scale
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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.