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Finding the Fourth Proportional to 354,645.10, 531,967.65 and 325,614.70

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Solution

The fourth proportional to 354,645.10, 531,967.65 and 325,614.70 is: 488,422.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,645.10 : 531,967.65 = 325,614.70 : x
  2. Step 2: Convert to fraction form
    354,645.10/531,967.65 = 325,614.70/x
  3. Step 3: Cross multiply
    354,645.10x = 531,967.65 × 325,614.70
  4. Step 4: Simplify right side
    354,645.10x = 173,216,486,764.46
  5. Step 5: Solve for x
    x = 173,216,486,764.46/354,645.10
  6. Step 6: Final answer
    x = 488,422.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.