Home / 917,216.43-1,263,675.86-709,771.43

Finding the Fourth Proportional to 917,216.43, 1,263,675.86 and 709,771.43

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Solution

The fourth proportional to 917,216.43, 1,263,675.86 and 709,771.43 is: 977,872.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,216.43 : 1,263,675.86 = 709,771.43 : x
  2. Step 2: Convert to fraction form
    917,216.43/1,263,675.86 = 709,771.43/x
  3. Step 3: Cross multiply
    917,216.43x = 1,263,675.86 × 709,771.43
  4. Step 4: Simplify right side
    917,216.43x = 896,921,022,208.68
  5. Step 5: Solve for x
    x = 896,921,022,208.68/917,216.43
  6. Step 6: Final answer
    x = 977,872.83

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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.