Home / 809,577.99-1,117,219.37-447,002.55

Finding the Fourth Proportional to 809,577.99, 1,117,219.37 and 447,002.55

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Solution

The fourth proportional to 809,577.99, 1,117,219.37 and 447,002.55 is: 616,864.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,577.99 : 1,117,219.37 = 447,002.55 : x
  2. Step 2: Convert to fraction form
    809,577.99/1,117,219.37 = 447,002.55/x
  3. Step 3: Cross multiply
    809,577.99x = 1,117,219.37 × 447,002.55
  4. Step 4: Simplify right side
    809,577.99x = 499,399,905,064.38
  5. Step 5: Solve for x
    x = 499,399,905,064.38/809,577.99
  6. Step 6: Final answer
    x = 616,864.48

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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.