Home / 428,403.23-591,202.95-234,809.39

Finding the Fourth Proportional to 428,403.23, 591,202.95 and 234,809.39

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Solution

The fourth proportional to 428,403.23, 591,202.95 and 234,809.39 is: 324,040.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,403.23 : 591,202.95 = 234,809.39 : x
  2. Step 2: Convert to fraction form
    428,403.23/591,202.95 = 234,809.39/x
  3. Step 3: Cross multiply
    428,403.23x = 591,202.95 × 234,809.39
  4. Step 4: Simplify right side
    428,403.23x = 138,820,001,327.66
  5. Step 5: Solve for x
    x = 138,820,001,327.66/428,403.23
  6. Step 6: Final answer
    x = 324,040.51

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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.