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Finding the Fourth Proportional to 536,591.25, 740,334.42 and 321,652.89

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Solution

The fourth proportional to 536,591.25, 740,334.42 and 321,652.89 is: 443,784.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,591.25 : 740,334.42 = 321,652.89 : x
  2. Step 2: Convert to fraction form
    536,591.25/740,334.42 = 321,652.89/x
  3. Step 3: Cross multiply
    536,591.25x = 740,334.42 × 321,652.89
  4. Step 4: Simplify right side
    536,591.25x = 238,130,702,057.80
  5. Step 5: Solve for x
    x = 238,130,702,057.80/536,591.25
  6. Step 6: Final answer
    x = 443,784.17

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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.