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Finding the Fourth Proportional to 524,449.20, 786,673.80 and 299,722.80

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Solution

The fourth proportional to 524,449.20, 786,673.80 and 299,722.80 is: 449,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,449.20 : 786,673.80 = 299,722.80 : x
  2. Step 2: Convert to fraction form
    524,449.20/786,673.80 = 299,722.80/x
  3. Step 3: Cross multiply
    524,449.20x = 786,673.80 × 299,722.80
  4. Step 4: Simplify right side
    524,449.20x = 235,784,074,022.64
  5. Step 5: Solve for x
    x = 235,784,074,022.64/524,449.20
  6. Step 6: Final answer
    x = 449,584.20

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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.