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Finding the Fourth Proportional to 439,503.05, 662,548.69 and 410,207.93

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Solution

The fourth proportional to 439,503.05, 662,548.69 and 410,207.93 is: 618,386.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,503.05 : 662,548.69 = 410,207.93 : x
  2. Step 2: Convert to fraction form
    439,503.05/662,548.69 = 410,207.93/x
  3. Step 3: Cross multiply
    439,503.05x = 662,548.69 × 410,207.93
  4. Step 4: Simplify right side
    439,503.05x = 271,782,722,310.85
  5. Step 5: Solve for x
    x = 271,782,722,310.85/439,503.05
  6. Step 6: Final answer
    x = 618,386.44

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.