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Finding the Fourth Proportional to 693,842.56, 957,662.76 and 451,703.50

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Solution

The fourth proportional to 693,842.56, 957,662.76 and 451,703.50 is: 623,455.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,842.56 : 957,662.76 = 451,703.50 : x
  2. Step 2: Convert to fraction form
    693,842.56/957,662.76 = 451,703.50/x
  3. Step 3: Cross multiply
    693,842.56x = 957,662.76 × 451,703.50
  4. Step 4: Simplify right side
    693,842.56x = 432,579,620,511.66
  5. Step 5: Solve for x
    x = 432,579,620,511.66/693,842.56
  6. Step 6: Final answer
    x = 623,455.01

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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.