Home / 809,605.80-1,117,248.53-447,021.86

Finding the Fourth Proportional to 809,605.80, 1,117,248.53 and 447,021.86

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Solution

The fourth proportional to 809,605.80, 1,117,248.53 and 447,021.86 is: 616,886.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,605.80 : 1,117,248.53 = 447,021.86 : x
  2. Step 2: Convert to fraction form
    809,605.80/1,117,248.53 = 447,021.86/x
  3. Step 3: Cross multiply
    809,605.80x = 1,117,248.53 × 447,021.86
  4. Step 4: Simplify right side
    809,605.80x = 499,434,508,141.51
  5. Step 5: Solve for x
    x = 499,434,508,141.51/809,605.80
  6. Step 6: Final answer
    x = 616,886.03

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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.