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Finding the Fourth Proportional to 544,113.20, 816,169.80 and 489,000.80

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Solution

The fourth proportional to 544,113.20, 816,169.80 and 489,000.80 is: 733,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,113.20 : 816,169.80 = 489,000.80 : x
  2. Step 2: Convert to fraction form
    544,113.20/816,169.80 = 489,000.80/x
  3. Step 3: Cross multiply
    544,113.20x = 816,169.80 × 489,000.80
  4. Step 4: Simplify right side
    544,113.20x = 399,107,685,135.84
  5. Step 5: Solve for x
    x = 399,107,685,135.84/544,113.20
  6. Step 6: Final answer
    x = 733,501.20

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Double scale
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Similar ratio
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1.5x scale

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.