Home / 810,157.20-1,118,039.49-447,604.44

Finding the Fourth Proportional to 810,157.20, 1,118,039.49 and 447,604.44

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Solution

The fourth proportional to 810,157.20, 1,118,039.49 and 447,604.44 is: 617,706.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,157.20 : 1,118,039.49 = 447,604.44 : x
  2. Step 2: Convert to fraction form
    810,157.20/1,118,039.49 = 447,604.44/x
  3. Step 3: Cross multiply
    810,157.20x = 1,118,039.49 × 447,604.44
  4. Step 4: Simplify right side
    810,157.20x = 500,439,439,819.34
  5. Step 5: Solve for x
    x = 500,439,439,819.34/810,157.20
  6. Step 6: Final answer
    x = 617,706.59

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Double scale
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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.