Home / 856,577.10-1,284,865.65-265,524.30

Finding the Fourth Proportional to 856,577.10, 1,284,865.65 and 265,524.30

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Solution

The fourth proportional to 856,577.10, 1,284,865.65 and 265,524.30 is: 398,286.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,577.10 : 1,284,865.65 = 265,524.30 : x
  2. Step 2: Convert to fraction form
    856,577.10/1,284,865.65 = 265,524.30/x
  3. Step 3: Cross multiply
    856,577.10x = 1,284,865.65 × 265,524.30
  4. Step 4: Simplify right side
    856,577.10x = 341,163,052,310.30
  5. Step 5: Solve for x
    x = 341,163,052,310.30/856,577.10
  6. Step 6: Final answer
    x = 398,286.45

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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.