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Finding the Fourth Proportional to 581,611.05, 802,295.52 and 339,842.31

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Solution

The fourth proportional to 581,611.05, 802,295.52 and 339,842.31 is: 468,790.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,611.05 : 802,295.52 = 339,842.31 : x
  2. Step 2: Convert to fraction form
    581,611.05/802,295.52 = 339,842.31/x
  3. Step 3: Cross multiply
    581,611.05x = 802,295.52 × 339,842.31
  4. Step 4: Simplify right side
    581,611.05x = 272,653,962,819.45
  5. Step 5: Solve for x
    x = 272,653,962,819.45/581,611.05
  6. Step 6: Final answer
    x = 468,790.89

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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.