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Finding the Fourth Proportional to 531,300.76, 733,195.62 and 289,583.54

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Solution

The fourth proportional to 531,300.76, 733,195.62 and 289,583.54 is: 399,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,300.76 : 733,195.62 = 289,583.54 : x
  2. Step 2: Convert to fraction form
    531,300.76/733,195.62 = 289,583.54/x
  3. Step 3: Cross multiply
    531,300.76x = 733,195.62 × 289,583.54
  4. Step 4: Simplify right side
    531,300.76x = 212,321,383,152.10
  5. Step 5: Solve for x
    x = 212,321,383,152.10/531,300.76
  6. Step 6: Final answer
    x = 399,625.60

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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.