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Finding the Fourth Proportional to 338,968.84, 508,260.56 and 262,004.60

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Solution

The fourth proportional to 338,968.84, 508,260.56 and 262,004.60 is: 392,857.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,968.84 : 508,260.56 = 262,004.60 : x
  2. Step 2: Convert to fraction form
    338,968.84/508,260.56 = 262,004.60/x
  3. Step 3: Cross multiply
    338,968.84x = 508,260.56 × 262,004.60
  4. Step 4: Simplify right side
    338,968.84x = 133,166,604,718.58
  5. Step 5: Solve for x
    x = 133,166,604,718.58/338,968.84
  6. Step 6: Final answer
    x = 392,857.95

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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.