Home / 809,430.84-1,117,016.43-446,854.95

Finding the Fourth Proportional to 809,430.84, 1,117,016.43 and 446,854.95

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Solution

The fourth proportional to 809,430.84, 1,117,016.43 and 446,854.95 is: 616,660.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,430.84 : 1,117,016.43 = 446,854.95 : x
  2. Step 2: Convert to fraction form
    809,430.84/1,117,016.43 = 446,854.95/x
  3. Step 3: Cross multiply
    809,430.84x = 1,117,016.43 × 446,854.95
  4. Step 4: Simplify right side
    809,430.84x = 499,144,320,976.83
  5. Step 5: Solve for x
    x = 499,144,320,976.83/809,430.84
  6. Step 6: Final answer
    x = 616,660.86

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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.