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Finding the Fourth Proportional to 504,650.12, 696,471.18 and 308,531.67

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Solution

The fourth proportional to 504,650.12, 696,471.18 and 308,531.67 is: 425,806.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,650.12 : 696,471.18 = 308,531.67 : x
  2. Step 2: Convert to fraction form
    504,650.12/696,471.18 = 308,531.67/x
  3. Step 3: Cross multiply
    504,650.12x = 696,471.18 × 308,531.67
  4. Step 4: Simplify right side
    504,650.12x = 214,883,419,681.60
  5. Step 5: Solve for x
    x = 214,883,419,681.60/504,650.12
  6. Step 6: Final answer
    x = 425,806.74

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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.