Home / 428,639.85-591,559.20-237,714.75

Finding the Fourth Proportional to 428,639.85, 591,559.20 and 237,714.75

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Solution

The fourth proportional to 428,639.85, 591,559.20 and 237,714.75 is: 328,066.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,639.85 : 591,559.20 = 237,714.75 : x
  2. Step 2: Convert to fraction form
    428,639.85/591,559.20 = 237,714.75/x
  3. Step 3: Cross multiply
    428,639.85x = 591,559.20 × 237,714.75
  4. Step 4: Simplify right side
    428,639.85x = 140,622,347,338.20
  5. Step 5: Solve for x
    x = 140,622,347,338.20/428,639.85
  6. Step 6: Final answer
    x = 328,066.43

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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.