Home / 809,566.88-1,117,219.72-447,013.68

Finding the Fourth Proportional to 809,566.88, 1,117,219.72 and 447,013.68

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Solution

The fourth proportional to 809,566.88, 1,117,219.72 and 447,013.68 is: 616,888.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,566.88 : 1,117,219.72 = 447,013.68 : x
  2. Step 2: Convert to fraction form
    809,566.88/1,117,219.72 = 447,013.68/x
  3. Step 3: Cross multiply
    809,566.88x = 1,117,219.72 × 447,013.68
  4. Step 4: Simplify right side
    809,566.88x = 499,412,498,405.77
  5. Step 5: Solve for x
    x = 499,412,498,405.77/809,566.88
  6. Step 6: Final answer
    x = 616,888.50

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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.