Home / 810,131.96-1,215,960.65-411,059.13

Finding the Fourth Proportional to 810,131.96, 1,215,960.65 and 411,059.13

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Solution

The fourth proportional to 810,131.96, 1,215,960.65 and 411,059.13 is: 616,975.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,131.96 : 1,215,960.65 = 411,059.13 : x
  2. Step 2: Convert to fraction form
    810,131.96/1,215,960.65 = 411,059.13/x
  3. Step 3: Cross multiply
    810,131.96x = 1,215,960.65 × 411,059.13
  4. Step 4: Simplify right side
    810,131.96x = 499,831,724,847.94
  5. Step 5: Solve for x
    x = 499,831,724,847.94/810,131.96
  6. Step 6: Final answer
    x = 616,975.69

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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.