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Finding the Fourth Proportional to 399,611.25, 596,501.81 and 349,165.37

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Solution

The fourth proportional to 399,611.25, 596,501.81 and 349,165.37 is: 521,200.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,611.25 : 596,501.81 = 349,165.37 : x
  2. Step 2: Convert to fraction form
    399,611.25/596,501.81 = 349,165.37/x
  3. Step 3: Cross multiply
    399,611.25x = 596,501.81 × 349,165.37
  4. Step 4: Simplify right side
    399,611.25x = 208,277,770,465.98
  5. Step 5: Solve for x
    x = 208,277,770,465.98/399,611.25
  6. Step 6: Final answer
    x = 521,200.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.