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Finding the Fourth Proportional to 400,846.01, 553,167.72 and 219,560.96

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Solution

The fourth proportional to 400,846.01, 553,167.72 and 219,560.96 is: 302,994.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,846.01 : 553,167.72 = 219,560.96 : x
  2. Step 2: Convert to fraction form
    400,846.01/553,167.72 = 219,560.96/x
  3. Step 3: Cross multiply
    400,846.01x = 553,167.72 × 219,560.96
  4. Step 4: Simplify right side
    400,846.01x = 121,454,037,027.13
  5. Step 5: Solve for x
    x = 121,454,037,027.13/400,846.01
  6. Step 6: Final answer
    x = 302,994.26

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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.