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Finding the Fourth Proportional to 428,662.64, 591,587.88 and 237,713.24

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Solution

The fourth proportional to 428,662.64, 591,587.88 and 237,713.24 is: 328,062.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,662.64 : 591,587.88 = 237,713.24 : x
  2. Step 2: Convert to fraction form
    428,662.64/591,587.88 = 237,713.24/x
  3. Step 3: Cross multiply
    428,662.64x = 591,587.88 × 237,713.24
  4. Step 4: Simplify right side
    428,662.64x = 140,628,271,699.53
  5. Step 5: Solve for x
    x = 140,628,271,699.53/428,662.64
  6. Step 6: Final answer
    x = 328,062.81

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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.