Home / 805,636.13-1,111,755.67-443,059.95

Finding the Fourth Proportional to 805,636.13, 1,111,755.67 and 443,059.95

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Solution

The fourth proportional to 805,636.13, 1,111,755.67 and 443,059.95 is: 611,410.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,636.13 : 1,111,755.67 = 443,059.95 : x
  2. Step 2: Convert to fraction form
    805,636.13/1,111,755.67 = 443,059.95/x
  3. Step 3: Cross multiply
    805,636.13x = 1,111,755.67 × 443,059.95
  4. Step 4: Simplify right side
    805,636.13x = 492,574,410,454.77
  5. Step 5: Solve for x
    x = 492,574,410,454.77/805,636.13
  6. Step 6: Final answer
    x = 611,410.52

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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.