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Finding the Fourth Proportional to 504,856.50, 696,577.68 and 308,573.28

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Solution

The fourth proportional to 504,856.50, 696,577.68 and 308,573.28 is: 425,755.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,856.50 : 696,577.68 = 308,573.28 : x
  2. Step 2: Convert to fraction form
    504,856.50/696,577.68 = 308,573.28/x
  3. Step 3: Cross multiply
    504,856.50x = 696,577.68 × 308,573.28
  4. Step 4: Simplify right side
    504,856.50x = 214,945,259,492.39
  5. Step 5: Solve for x
    x = 214,945,259,492.39/504,856.50
  6. Step 6: Final answer
    x = 425,755.16

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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.