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Finding the Fourth Proportional to 480,881.88, 721,488.60 and 214,826.04

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Solution

The fourth proportional to 480,881.88, 721,488.60 and 214,826.04 is: 322,313.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,881.88 : 721,488.60 = 214,826.04 : x
  2. Step 2: Convert to fraction form
    480,881.88/721,488.60 = 214,826.04/x
  3. Step 3: Cross multiply
    480,881.88x = 721,488.60 × 214,826.04
  4. Step 4: Simplify right side
    480,881.88x = 154,994,538,843.14
  5. Step 5: Solve for x
    x = 154,994,538,843.14/480,881.88
  6. Step 6: Final answer
    x = 322,313.12

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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.