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Finding the Fourth Proportional to 368,901.39, 509,070.47 and 205,549.45

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Solution

The fourth proportional to 368,901.39, 509,070.47 and 205,549.45 is: 283,650.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,901.39 : 509,070.47 = 205,549.45 : x
  2. Step 2: Convert to fraction form
    368,901.39/509,070.47 = 205,549.45/x
  3. Step 3: Cross multiply
    368,901.39x = 509,070.47 × 205,549.45
  4. Step 4: Simplify right side
    368,901.39x = 104,639,157,204.60
  5. Step 5: Solve for x
    x = 104,639,157,204.60/368,901.39
  6. Step 6: Final answer
    x = 283,650.76

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