Home / 811,173.59-1,216,758.85-305,847.93

Finding the Fourth Proportional to 811,173.59, 1,216,758.85 and 305,847.93

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Solution

The fourth proportional to 811,173.59, 1,216,758.85 and 305,847.93 is: 458,771.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,173.59 : 1,216,758.85 = 305,847.93 : x
  2. Step 2: Convert to fraction form
    811,173.59/1,216,758.85 = 305,847.93/x
  3. Step 3: Cross multiply
    811,173.59x = 1,216,758.85 × 305,847.93
  4. Step 4: Simplify right side
    811,173.59x = 372,143,169,497.89
  5. Step 5: Solve for x
    x = 372,143,169,497.89/811,173.59
  6. Step 6: Final answer
    x = 458,771.31

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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.