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Finding the Fourth Proportional to 355,213.60, 534,132.60 and 297,476.80

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Solution

The fourth proportional to 355,213.60, 534,132.60 and 297,476.80 is: 447,314.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,213.60 : 534,132.60 = 297,476.80 : x
  2. Step 2: Convert to fraction form
    355,213.60/534,132.60 = 297,476.80/x
  3. Step 3: Cross multiply
    355,213.60x = 534,132.60 × 297,476.80
  4. Step 4: Simplify right side
    355,213.60x = 158,892,056,623.68
  5. Step 5: Solve for x
    x = 158,892,056,623.68/355,213.60
  6. Step 6: Final answer
    x = 447,314.11

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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.