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Finding the Fourth Proportional to 351,097.70, 525,868.95 and 288,889.70

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Solution

The fourth proportional to 351,097.70, 525,868.95 and 288,889.70 is: 432,694.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,097.70 : 525,868.95 = 288,889.70 : x
  2. Step 2: Convert to fraction form
    351,097.70/525,868.95 = 288,889.70/x
  3. Step 3: Cross multiply
    351,097.70x = 525,868.95 × 288,889.70
  4. Step 4: Simplify right side
    351,097.70x = 151,918,123,204.82
  5. Step 5: Solve for x
    x = 151,918,123,204.82/351,097.70
  6. Step 6: Final answer
    x = 432,694.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.