Home / 809,726.60-1,213,553.10-621,806.60

Finding the Fourth Proportional to 809,726.60, 1,213,553.10 and 621,806.60

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Solution

The fourth proportional to 809,726.60, 1,213,553.10 and 621,806.60 is: 931,913.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,726.60 : 1,213,553.10 = 621,806.60 : x
  2. Step 2: Convert to fraction form
    809,726.60/1,213,553.10 = 621,806.60/x
  3. Step 3: Cross multiply
    809,726.60x = 1,213,553.10 × 621,806.60
  4. Step 4: Simplify right side
    809,726.60x = 754,595,327,030.46
  5. Step 5: Solve for x
    x = 754,595,327,030.46/809,726.60
  6. Step 6: Final answer
    x = 931,913.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.