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Finding the Fourth Proportional to 626,515.92, 864,592.74 and 340,035.96

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Solution

The fourth proportional to 626,515.92, 864,592.74 and 340,035.96 is: 469,250.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,515.92 : 864,592.74 = 340,035.96 : x
  2. Step 2: Convert to fraction form
    626,515.92/864,592.74 = 340,035.96/x
  3. Step 3: Cross multiply
    626,515.92x = 864,592.74 × 340,035.96
  4. Step 4: Simplify right side
    626,515.92x = 293,992,622,354.93
  5. Step 5: Solve for x
    x = 293,992,622,354.93/626,515.92
  6. Step 6: Final answer
    x = 469,250.04

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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.