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Finding the Fourth Proportional to 468,415.76, 702,518.51 and 215,453.27

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Solution

The fourth proportional to 468,415.76, 702,518.51 and 215,453.27 is: 323,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,415.76 : 702,518.51 = 215,453.27 : x
  2. Step 2: Convert to fraction form
    468,415.76/702,518.51 = 215,453.27/x
  3. Step 3: Cross multiply
    468,415.76x = 702,518.51 × 215,453.27
  4. Step 4: Simplify right side
    468,415.76x = 151,359,905,625.17
  5. Step 5: Solve for x
    x = 151,359,905,625.17/468,415.76
  6. Step 6: Final answer
    x = 323,131.54

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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.