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Finding the Fourth Proportional to 468,732.30, 702,114.30 and 390,000.30

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Solution

The fourth proportional to 468,732.30, 702,114.30 and 390,000.30 is: 584,181.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,732.30 : 702,114.30 = 390,000.30 : x
  2. Step 2: Convert to fraction form
    468,732.30/702,114.30 = 390,000.30/x
  3. Step 3: Cross multiply
    468,732.30x = 702,114.30 × 390,000.30
  4. Step 4: Simplify right side
    468,732.30x = 273,824,787,634.29
  5. Step 5: Solve for x
    x = 273,824,787,634.29/468,732.30
  6. Step 6: Final answer
    x = 584,181.61

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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.