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Finding the Fourth Proportional to 457,794.18, 631,749.33 and 253,845.45

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Solution

The fourth proportional to 457,794.18, 631,749.33 and 253,845.45 is: 350,303.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,794.18 : 631,749.33 = 253,845.45 : x
  2. Step 2: Convert to fraction form
    457,794.18/631,749.33 = 253,845.45/x
  3. Step 3: Cross multiply
    457,794.18x = 631,749.33 × 253,845.45
  4. Step 4: Simplify right side
    457,794.18x = 160,366,692,961.05
  5. Step 5: Solve for x
    x = 160,366,692,961.05/457,794.18
  6. Step 6: Final answer
    x = 350,303.04

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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.