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Finding the Fourth Proportional to 489,072.80, 733,609.20 and 370,974.80

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Solution

The fourth proportional to 489,072.80, 733,609.20 and 370,974.80 is: 556,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,072.80 : 733,609.20 = 370,974.80 : x
  2. Step 2: Convert to fraction form
    489,072.80/733,609.20 = 370,974.80/x
  3. Step 3: Cross multiply
    489,072.80x = 733,609.20 × 370,974.80
  4. Step 4: Simplify right side
    489,072.80x = 272,150,526,248.16
  5. Step 5: Solve for x
    x = 272,150,526,248.16/489,072.80
  6. Step 6: Final answer
    x = 556,462.20

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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.