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Finding the Fourth Proportional to 457,797.68, 631,749.48 and 253,849.40

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Solution

The fourth proportional to 457,797.68, 631,749.48 and 253,849.40 is: 350,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,797.68 : 631,749.48 = 253,849.40 : x
  2. Step 2: Convert to fraction form
    457,797.68/631,749.48 = 253,849.40/x
  3. Step 3: Cross multiply
    457,797.68x = 631,749.48 × 253,849.40
  4. Step 4: Simplify right side
    457,797.68x = 160,369,226,448.31
  5. Step 5: Solve for x
    x = 160,369,226,448.31/457,797.68
  6. Step 6: Final answer
    x = 350,305.90

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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.