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Finding the Fourth Proportional to 400,624.74, 552,862.24 and 219,348.18

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Solution

The fourth proportional to 400,624.74, 552,862.24 and 219,348.18 is: 302,700.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,624.74 : 552,862.24 = 219,348.18 : x
  2. Step 2: Convert to fraction form
    400,624.74/552,862.24 = 219,348.18/x
  3. Step 3: Cross multiply
    400,624.74x = 552,862.24 × 219,348.18
  4. Step 4: Simplify right side
    400,624.74x = 121,269,326,134.72
  5. Step 5: Solve for x
    x = 121,269,326,134.72/400,624.74
  6. Step 6: Final answer
    x = 302,700.54

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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.