Home / 809,433.09-1,117,019.54-446,857.20

Finding the Fourth Proportional to 809,433.09, 1,117,019.54 and 446,857.20

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Solution

The fourth proportional to 809,433.09, 1,117,019.54 and 446,857.20 is: 616,663.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,433.09 : 1,117,019.54 = 446,857.20 : x
  2. Step 2: Convert to fraction form
    809,433.09/1,117,019.54 = 446,857.20/x
  3. Step 3: Cross multiply
    809,433.09x = 1,117,019.54 × 446,857.20
  4. Step 4: Simplify right side
    809,433.09x = 499,148,221,755.40
  5. Step 5: Solve for x
    x = 499,148,221,755.40/809,433.09
  6. Step 6: Final answer
    x = 616,663.97

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Double scale
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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.