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Finding the Fourth Proportional to 468,068.60, 702,102.90 and 279,111.80

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Solution

The fourth proportional to 468,068.60, 702,102.90 and 279,111.80 is: 418,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,068.60 : 702,102.90 = 279,111.80 : x
  2. Step 2: Convert to fraction form
    468,068.60/702,102.90 = 279,111.80/x
  3. Step 3: Cross multiply
    468,068.60x = 702,102.90 × 279,111.80
  4. Step 4: Simplify right side
    468,068.60x = 195,965,204,204.22
  5. Step 5: Solve for x
    x = 195,965,204,204.22/468,068.60
  6. Step 6: Final answer
    x = 418,667.70

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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.