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Finding the Fourth Proportional to 362,543.60, 543,815.40 and 359,919.20

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Solution

The fourth proportional to 362,543.60, 543,815.40 and 359,919.20 is: 539,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,543.60 : 543,815.40 = 359,919.20 : x
  2. Step 2: Convert to fraction form
    362,543.60/543,815.40 = 359,919.20/x
  3. Step 3: Cross multiply
    362,543.60x = 543,815.40 × 359,919.20
  4. Step 4: Simplify right side
    362,543.60x = 195,729,603,715.68
  5. Step 5: Solve for x
    x = 195,729,603,715.68/362,543.60
  6. Step 6: Final answer
    x = 539,878.80

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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.