Home / 809,589.81-1,117,212.64-447,005.86

Finding the Fourth Proportional to 809,589.81, 1,117,212.64 and 447,005.86

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Solution

The fourth proportional to 809,589.81, 1,117,212.64 and 447,005.86 is: 616,856.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,589.81 : 1,117,212.64 = 447,005.86 : x
  2. Step 2: Convert to fraction form
    809,589.81/1,117,212.64 = 447,005.86/x
  3. Step 3: Cross multiply
    809,589.81x = 1,117,212.64 × 447,005.86
  4. Step 4: Simplify right side
    809,589.81x = 499,400,596,946.07
  5. Step 5: Solve for x
    x = 499,400,596,946.07/809,589.81
  6. Step 6: Final answer
    x = 616,856.33

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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.