Home / 809,580.89-1,117,265.45-447,003.69

Finding the Fourth Proportional to 809,580.89, 1,117,265.45 and 447,003.69

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Solution

The fourth proportional to 809,580.89, 1,117,265.45 and 447,003.69 is: 616,889.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,580.89 : 1,117,265.45 = 447,003.69 : x
  2. Step 2: Convert to fraction form
    809,580.89/1,117,265.45 = 447,003.69/x
  3. Step 3: Cross multiply
    809,580.89x = 1,117,265.45 × 447,003.69
  4. Step 4: Simplify right side
    809,580.89x = 499,421,776,624.49
  5. Step 5: Solve for x
    x = 499,421,776,624.49/809,580.89
  6. Step 6: Final answer
    x = 616,889.29

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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.