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Finding the Fourth Proportional to 737,308.32, 1,105,962 and 421,543.80

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Solution

The fourth proportional to 737,308.32, 1,105,962 and 421,543.80 is: 632,315.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,308.32 : 1,105,962 = 421,543.80 : x
  2. Step 2: Convert to fraction form
    737,308.32/1,105,962 = 421,543.80/x
  3. Step 3: Cross multiply
    737,308.32x = 1,105,962 × 421,543.80
  4. Step 4: Simplify right side
    737,308.32x = 466,211,424,135.60
  5. Step 5: Solve for x
    x = 466,211,424,135.60/737,308.32
  6. Step 6: Final answer
    x = 632,315.43

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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.