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Finding the Fourth Proportional to 338,733.18, 508,185.18 and 239,087.97

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Solution

The fourth proportional to 338,733.18, 508,185.18 and 239,087.97 is: 358,692.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,733.18 : 508,185.18 = 239,087.97 : x
  2. Step 2: Convert to fraction form
    338,733.18/508,185.18 = 239,087.97/x
  3. Step 3: Cross multiply
    338,733.18x = 508,185.18 × 239,087.97
  4. Step 4: Simplify right side
    338,733.18x = 121,500,963,070.29
  5. Step 5: Solve for x
    x = 121,500,963,070.29/338,733.18
  6. Step 6: Final answer
    x = 358,692.24

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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.