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Finding the Fourth Proportional to 457,957.42, 631,955.43 and 253,993.70

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Solution

The fourth proportional to 457,957.42, 631,955.43 and 253,993.70 is: 350,497.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,957.42 : 631,955.43 = 253,993.70 : x
  2. Step 2: Convert to fraction form
    457,957.42/631,955.43 = 253,993.70/x
  3. Step 3: Cross multiply
    457,957.42x = 631,955.43 × 253,993.70
  4. Step 4: Simplify right side
    457,957.42x = 160,512,699,480.68
  5. Step 5: Solve for x
    x = 160,512,699,480.68/457,957.42
  6. Step 6: Final answer
    x = 350,497.00

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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.