Home / 805,813.47-1,111,999.37-443,237.31

Finding the Fourth Proportional to 805,813.47, 1,111,999.37 and 443,237.31

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Solution

The fourth proportional to 805,813.47, 1,111,999.37 and 443,237.31 is: 611,654.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,813.47 : 1,111,999.37 = 443,237.31 : x
  2. Step 2: Convert to fraction form
    805,813.47/1,111,999.37 = 443,237.31/x
  3. Step 3: Cross multiply
    805,813.47x = 1,111,999.37 × 443,237.31
  4. Step 4: Simplify right side
    805,813.47x = 492,879,607,264.31
  5. Step 5: Solve for x
    x = 492,879,607,264.31/805,813.47
  6. Step 6: Final answer
    x = 611,654.71

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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.