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Finding the Fourth Proportional to 626,814.98, 865,022.19 and 340,352.54

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Solution

The fourth proportional to 626,814.98, 865,022.19 and 340,352.54 is: 469,696.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,814.98 : 865,022.19 = 340,352.54 : x
  2. Step 2: Convert to fraction form
    626,814.98/865,022.19 = 340,352.54/x
  3. Step 3: Cross multiply
    626,814.98x = 865,022.19 × 340,352.54
  4. Step 4: Simplify right side
    626,814.98x = 294,412,499,522.86
  5. Step 5: Solve for x
    x = 294,412,499,522.86/626,814.98
  6. Step 6: Final answer
    x = 469,696.02

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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.