Home / 816,521.88-1,126,804.56-449,022.71

Finding the Fourth Proportional to 816,521.88, 1,126,804.56 and 449,022.71

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Solution

The fourth proportional to 816,521.88, 1,126,804.56 and 449,022.71 is: 619,653.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,521.88 : 1,126,804.56 = 449,022.71 : x
  2. Step 2: Convert to fraction form
    816,521.88/1,126,804.56 = 449,022.71/x
  3. Step 3: Cross multiply
    816,521.88x = 1,126,804.56 × 449,022.71
  4. Step 4: Simplify right side
    816,521.88x = 505,960,834,354.55
  5. Step 5: Solve for x
    x = 505,960,834,354.55/816,521.88
  6. Step 6: Final answer
    x = 619,653.74

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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.