Home / 809,826.86-1,117,569.42-447,259.76

Finding the Fourth Proportional to 809,826.86, 1,117,569.42 and 447,259.76

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Solution

The fourth proportional to 809,826.86, 1,117,569.42 and 447,259.76 is: 617,223.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,826.86 : 1,117,569.42 = 447,259.76 : x
  2. Step 2: Convert to fraction form
    809,826.86/1,117,569.42 = 447,259.76/x
  3. Step 3: Cross multiply
    809,826.86x = 1,117,569.42 × 447,259.76
  4. Step 4: Simplify right side
    809,826.86x = 499,843,830,572.54
  5. Step 5: Solve for x
    x = 499,843,830,572.54/809,826.86
  6. Step 6: Final answer
    x = 617,223.08

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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.