Home / 428,976.50-591,995.39-235,394.19

Finding the Fourth Proportional to 428,976.50, 591,995.39 and 235,394.19

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Solution

The fourth proportional to 428,976.50, 591,995.39 and 235,394.19 is: 324,848.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,976.50 : 591,995.39 = 235,394.19 : x
  2. Step 2: Convert to fraction form
    428,976.50/591,995.39 = 235,394.19/x
  3. Step 3: Cross multiply
    428,976.50x = 591,995.39 × 235,394.19
  4. Step 4: Simplify right side
    428,976.50x = 139,352,274,135.81
  5. Step 5: Solve for x
    x = 139,352,274,135.81/428,976.50
  6. Step 6: Final answer
    x = 324,848.27

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1.5x scale

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.