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Finding the Fourth Proportional to 589,059.55, 812,645.49 and 371,135.94

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Solution

The fourth proportional to 589,059.55, 812,645.49 and 371,135.94 is: 512,005.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,059.55 : 812,645.49 = 371,135.94 : x
  2. Step 2: Convert to fraction form
    589,059.55/812,645.49 = 371,135.94/x
  3. Step 3: Cross multiply
    589,059.55x = 812,645.49 × 371,135.94
  4. Step 4: Simplify right side
    589,059.55x = 301,601,943,754.68
  5. Step 5: Solve for x
    x = 301,601,943,754.68/589,059.55
  6. Step 6: Final answer
    x = 512,005.86

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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.