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Finding the Fourth Proportional to 333,234.40, 499,851.60 and 215,039.20

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Solution

The fourth proportional to 333,234.40, 499,851.60 and 215,039.20 is: 322,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,234.40 : 499,851.60 = 215,039.20 : x
  2. Step 2: Convert to fraction form
    333,234.40/499,851.60 = 215,039.20/x
  3. Step 3: Cross multiply
    333,234.40x = 499,851.60 × 215,039.20
  4. Step 4: Simplify right side
    333,234.40x = 107,487,688,182.72
  5. Step 5: Solve for x
    x = 107,487,688,182.72/333,234.40
  6. Step 6: Final answer
    x = 322,558.80

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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.