Home / 856,830.60-1,285,245.90-436,926.60

Finding the Fourth Proportional to 856,830.60, 1,285,245.90 and 436,926.60

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Solution

The fourth proportional to 856,830.60, 1,285,245.90 and 436,926.60 is: 655,389.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,830.60 : 1,285,245.90 = 436,926.60 : x
  2. Step 2: Convert to fraction form
    856,830.60/1,285,245.90 = 436,926.60/x
  3. Step 3: Cross multiply
    856,830.60x = 1,285,245.90 × 436,926.60
  4. Step 4: Simplify right side
    856,830.60x = 561,558,121,250.94
  5. Step 5: Solve for x
    x = 561,558,121,250.94/856,830.60
  6. Step 6: Final answer
    x = 655,389.90

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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.