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Finding the Fourth Proportional to 468,651.60, 702,977.40 and 309,219.30

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Solution

The fourth proportional to 468,651.60, 702,977.40 and 309,219.30 is: 463,828.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,651.60 : 702,977.40 = 309,219.30 : x
  2. Step 2: Convert to fraction form
    468,651.60/702,977.40 = 309,219.30/x
  3. Step 3: Cross multiply
    468,651.60x = 702,977.40 × 309,219.30
  4. Step 4: Simplify right side
    468,651.60x = 217,374,179,543.82
  5. Step 5: Solve for x
    x = 217,374,179,543.82/468,651.60
  6. Step 6: Final answer
    x = 463,828.95

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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.