Home / 428,977.54-591,988.77-235,386.49

Finding the Fourth Proportional to 428,977.54, 591,988.77 and 235,386.49

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Solution

The fourth proportional to 428,977.54, 591,988.77 and 235,386.49 is: 324,833.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,977.54 : 591,988.77 = 235,386.49 : x
  2. Step 2: Convert to fraction form
    428,977.54/591,988.77 = 235,386.49/x
  3. Step 3: Cross multiply
    428,977.54x = 591,988.77 × 235,386.49
  4. Step 4: Simplify right side
    428,977.54x = 139,346,158,319.72
  5. Step 5: Solve for x
    x = 139,346,158,319.72/428,977.54
  6. Step 6: Final answer
    x = 324,833.23

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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.