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Finding the Fourth Proportional to 369,581.30, 510,042.12 and 216,622.52

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Solution

The fourth proportional to 369,581.30, 510,042.12 and 216,622.52 is: 298,950.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,581.30 : 510,042.12 = 216,622.52 : x
  2. Step 2: Convert to fraction form
    369,581.30/510,042.12 = 216,622.52/x
  3. Step 3: Cross multiply
    369,581.30x = 510,042.12 × 216,622.52
  4. Step 4: Simplify right side
    369,581.30x = 110,486,609,340.54
  5. Step 5: Solve for x
    x = 110,486,609,340.54/369,581.30
  6. Step 6: Final answer
    x = 298,950.76

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Why These Related Problems?

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