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Finding the Fourth Proportional to 483,021.60, 724,532.40 and 404,872.80

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Solution

The fourth proportional to 483,021.60, 724,532.40 and 404,872.80 is: 607,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,021.60 : 724,532.40 = 404,872.80 : x
  2. Step 2: Convert to fraction form
    483,021.60/724,532.40 = 404,872.80/x
  3. Step 3: Cross multiply
    483,021.60x = 724,532.40 × 404,872.80
  4. Step 4: Simplify right side
    483,021.60x = 293,343,461,478.72
  5. Step 5: Solve for x
    x = 293,343,461,478.72/483,021.60
  6. Step 6: Final answer
    x = 607,309.20

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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.