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Finding the Fourth Proportional to 569,078.53, 785,261.18 and 339,593.31

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Solution

The fourth proportional to 569,078.53, 785,261.18 and 339,593.31 is: 468,598.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,078.53 : 785,261.18 = 339,593.31 : x
  2. Step 2: Convert to fraction form
    569,078.53/785,261.18 = 339,593.31/x
  3. Step 3: Cross multiply
    569,078.53x = 785,261.18 × 339,593.31
  4. Step 4: Simplify right side
    569,078.53x = 266,669,444,179.69
  5. Step 5: Solve for x
    x = 266,669,444,179.69/569,078.53
  6. Step 6: Final answer
    x = 468,598.68

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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.