Home / 818,783.70-1,228,175.55-606,207.30

Finding the Fourth Proportional to 818,783.70, 1,228,175.55 and 606,207.30

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Solution

The fourth proportional to 818,783.70, 1,228,175.55 and 606,207.30 is: 909,310.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,783.70 : 1,228,175.55 = 606,207.30 : x
  2. Step 2: Convert to fraction form
    818,783.70/1,228,175.55 = 606,207.30/x
  3. Step 3: Cross multiply
    818,783.70x = 1,228,175.55 × 606,207.30
  4. Step 4: Simplify right side
    818,783.70x = 744,528,984,091.52
  5. Step 5: Solve for x
    x = 744,528,984,091.52/818,783.70
  6. Step 6: Final answer
    x = 909,310.95

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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.