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Finding the Fourth Proportional to 356,619.04, 535,009.28 and 204,886.17

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Solution

The fourth proportional to 356,619.04, 535,009.28 and 204,886.17 is: 307,375.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,619.04 : 535,009.28 = 204,886.17 : x
  2. Step 2: Convert to fraction form
    356,619.04/535,009.28 = 204,886.17/x
  3. Step 3: Cross multiply
    356,619.04x = 535,009.28 × 204,886.17
  4. Step 4: Simplify right side
    356,619.04x = 109,616,000,340.76
  5. Step 5: Solve for x
    x = 109,616,000,340.76/356,619.04
  6. Step 6: Final answer
    x = 307,375.63

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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.