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Finding the Fourth Proportional to 466,939.20, 700,408.80 and 407,890.20

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Solution

The fourth proportional to 466,939.20, 700,408.80 and 407,890.20 is: 611,835.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,939.20 : 700,408.80 = 407,890.20 : x
  2. Step 2: Convert to fraction form
    466,939.20/700,408.80 = 407,890.20/x
  3. Step 3: Cross multiply
    466,939.20x = 700,408.80 × 407,890.20
  4. Step 4: Simplify right side
    466,939.20x = 285,689,885,513.76
  5. Step 5: Solve for x
    x = 285,689,885,513.76/466,939.20
  6. Step 6: Final answer
    x = 611,835.30

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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.