Home / 786,041.53-1,179,311.53-280,591.66

Finding the Fourth Proportional to 786,041.53, 1,179,311.53 and 280,591.66

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Solution

The fourth proportional to 786,041.53, 1,179,311.53 and 280,591.66 is: 420,976.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,041.53 : 1,179,311.53 = 280,591.66 : x
  2. Step 2: Convert to fraction form
    786,041.53/1,179,311.53 = 280,591.66/x
  3. Step 3: Cross multiply
    786,041.53x = 1,179,311.53 × 280,591.66
  4. Step 4: Simplify right side
    786,041.53x = 330,904,980,369.45
  5. Step 5: Solve for x
    x = 330,904,980,369.45/786,041.53
  6. Step 6: Final answer
    x = 420,976.46

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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.