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Finding the Fourth Proportional to 466,328.20, 699,492.30 and 411,215.80

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Solution

The fourth proportional to 466,328.20, 699,492.30 and 411,215.80 is: 616,823.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,328.20 : 699,492.30 = 411,215.80 : x
  2. Step 2: Convert to fraction form
    466,328.20/699,492.30 = 411,215.80/x
  3. Step 3: Cross multiply
    466,328.20x = 699,492.30 × 411,215.80
  4. Step 4: Simplify right side
    466,328.20x = 287,642,285,738.34
  5. Step 5: Solve for x
    x = 287,642,285,738.34/466,328.20
  6. Step 6: Final answer
    x = 616,823.70

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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.