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Finding the Fourth Proportional to 619,494.58, 928,870.17 and 214,553.62

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Solution

The fourth proportional to 619,494.58, 928,870.17 and 214,553.62 is: 321,701.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,494.58 : 928,870.17 = 214,553.62 : x
  2. Step 2: Convert to fraction form
    619,494.58/928,870.17 = 214,553.62/x
  3. Step 3: Cross multiply
    619,494.58x = 928,870.17 × 214,553.62
  4. Step 4: Simplify right side
    619,494.58x = 199,292,457,483.52
  5. Step 5: Solve for x
    x = 199,292,457,483.52/619,494.58
  6. Step 6: Final answer
    x = 321,701.70

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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.