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Finding the Fourth Proportional to 622,205.60, 932,761.20 and 368,861.60

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Solution

The fourth proportional to 622,205.60, 932,761.20 and 368,861.60 is: 552,968.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,205.60 : 932,761.20 = 368,861.60 : x
  2. Step 2: Convert to fraction form
    622,205.60/932,761.20 = 368,861.60/x
  3. Step 3: Cross multiply
    622,205.60x = 932,761.20 × 368,861.60
  4. Step 4: Simplify right side
    622,205.60x = 344,059,788,649.92
  5. Step 5: Solve for x
    x = 344,059,788,649.92/622,205.60
  6. Step 6: Final answer
    x = 552,968.00

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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.