Home / 820,134.61-1,131,786.46-457,558.52

Finding the Fourth Proportional to 820,134.61, 1,131,786.46 and 457,558.52

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Solution

The fourth proportional to 820,134.61, 1,131,786.46 and 457,558.52 is: 631,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,134.61 : 1,131,786.46 = 457,558.52 : x
  2. Step 2: Convert to fraction form
    820,134.61/1,131,786.46 = 457,558.52/x
  3. Step 3: Cross multiply
    820,134.61x = 1,131,786.46 × 457,558.52
  4. Step 4: Simplify right side
    820,134.61x = 517,858,537,593.64
  5. Step 5: Solve for x
    x = 517,858,537,593.64/820,134.61
  6. Step 6: Final answer
    x = 631,431.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.