Home / 805,619.90-1,111,730.00-443,042.61

Finding the Fourth Proportional to 805,619.90, 1,111,730.00 and 443,042.61

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Solution

The fourth proportional to 805,619.90, 1,111,730.00 and 443,042.61 is: 611,384.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,619.90 : 1,111,730.00 = 443,042.61 : x
  2. Step 2: Convert to fraction form
    805,619.90/1,111,730.00 = 443,042.61/x
  3. Step 3: Cross multiply
    805,619.90x = 1,111,730.00 × 443,042.61
  4. Step 4: Simplify right side
    805,619.90x = 492,543,758,600.09
  5. Step 5: Solve for x
    x = 492,543,758,600.09/805,619.90
  6. Step 6: Final answer
    x = 611,384.80

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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.