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Finding the Fourth Proportional to 572,300.82, 789,812.10 and 330,593.58

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Solution

The fourth proportional to 572,300.82, 789,812.10 and 330,593.58 is: 456,240.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,300.82 : 789,812.10 = 330,593.58 : x
  2. Step 2: Convert to fraction form
    572,300.82/789,812.10 = 330,593.58/x
  3. Step 3: Cross multiply
    572,300.82x = 789,812.10 × 330,593.58
  4. Step 4: Simplify right side
    572,300.82x = 261,106,809,666.32
  5. Step 5: Solve for x
    x = 261,106,809,666.32/572,300.82
  6. Step 6: Final answer
    x = 456,240.50

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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.