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Finding the Fourth Proportional to 368,446.40, 552,669.60 and 363,780.80

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Solution

The fourth proportional to 368,446.40, 552,669.60 and 363,780.80 is: 545,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,446.40 : 552,669.60 = 363,780.80 : x
  2. Step 2: Convert to fraction form
    368,446.40/552,669.60 = 363,780.80/x
  3. Step 3: Cross multiply
    368,446.40x = 552,669.60 × 363,780.80
  4. Step 4: Simplify right side
    368,446.40x = 201,050,589,223.68
  5. Step 5: Solve for x
    x = 201,050,589,223.68/368,446.40
  6. Step 6: Final answer
    x = 545,671.20

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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.