Home / 816,567.01-1,126,880.78-449,020.86

Finding the Fourth Proportional to 816,567.01, 1,126,880.78 and 449,020.86

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Solution

The fourth proportional to 816,567.01, 1,126,880.78 and 449,020.86 is: 619,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,567.01 : 1,126,880.78 = 449,020.86 : x
  2. Step 2: Convert to fraction form
    816,567.01/1,126,880.78 = 449,020.86/x
  3. Step 3: Cross multiply
    816,567.01x = 1,126,880.78 × 449,020.86
  4. Step 4: Simplify right side
    816,567.01x = 505,992,976,953.07
  5. Step 5: Solve for x
    x = 505,992,976,953.07/816,567.01
  6. Step 6: Final answer
    x = 619,658.85

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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.