Home / 805,603.18-1,111,760.93-443,055.08

Finding the Fourth Proportional to 805,603.18, 1,111,760.93 and 443,055.08

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Solution

The fourth proportional to 805,603.18, 1,111,760.93 and 443,055.08 is: 611,431.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,603.18 : 1,111,760.93 = 443,055.08 : x
  2. Step 2: Convert to fraction form
    805,603.18/1,111,760.93 = 443,055.08/x
  3. Step 3: Cross multiply
    805,603.18x = 1,111,760.93 × 443,055.08
  4. Step 4: Simplify right side
    805,603.18x = 492,571,327,782.02
  5. Step 5: Solve for x
    x = 492,571,327,782.02/805,603.18
  6. Step 6: Final answer
    x = 611,431.71

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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.