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Finding the Fourth Proportional to 452,007.86, 624,003.09 and 318,468.02

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Solution

The fourth proportional to 452,007.86, 624,003.09 and 318,468.02 is: 439,649.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,007.86 : 624,003.09 = 318,468.02 : x
  2. Step 2: Convert to fraction form
    452,007.86/624,003.09 = 318,468.02/x
  3. Step 3: Cross multiply
    452,007.86x = 624,003.09 × 318,468.02
  4. Step 4: Simplify right side
    452,007.86x = 198,725,028,546.18
  5. Step 5: Solve for x
    x = 198,725,028,546.18/452,007.86
  6. Step 6: Final answer
    x = 439,649.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.