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Finding the Fourth Proportional to 587,212.40, 880,818.60 and 489,234.80

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Solution

The fourth proportional to 587,212.40, 880,818.60 and 489,234.80 is: 733,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,212.40 : 880,818.60 = 489,234.80 : x
  2. Step 2: Convert to fraction form
    587,212.40/880,818.60 = 489,234.80/x
  3. Step 3: Cross multiply
    587,212.40x = 880,818.60 × 489,234.80
  4. Step 4: Simplify right side
    587,212.40x = 430,927,111,607.28
  5. Step 5: Solve for x
    x = 430,927,111,607.28/587,212.40
  6. Step 6: Final answer
    x = 733,852.20

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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.