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Finding the Fourth Proportional to 469,883.28, 648,422.48 and 255,019.04

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Solution

The fourth proportional to 469,883.28, 648,422.48 and 255,019.04 is: 351,917.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,883.28 : 648,422.48 = 255,019.04 : x
  2. Step 2: Convert to fraction form
    469,883.28/648,422.48 = 255,019.04/x
  3. Step 3: Cross multiply
    469,883.28x = 648,422.48 × 255,019.04
  4. Step 4: Simplify right side
    469,883.28x = 165,360,078,364.02
  5. Step 5: Solve for x
    x = 165,360,078,364.02/469,883.28
  6. Step 6: Final answer
    x = 351,917.35

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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.