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Finding the Fourth Proportional to 523,044.80, 784,567.20 and 149,019.20

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Solution

The fourth proportional to 523,044.80, 784,567.20 and 149,019.20 is: 223,528.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,044.80 : 784,567.20 = 149,019.20 : x
  2. Step 2: Convert to fraction form
    523,044.80/784,567.20 = 149,019.20/x
  3. Step 3: Cross multiply
    523,044.80x = 784,567.20 × 149,019.20
  4. Step 4: Simplify right side
    523,044.80x = 116,915,576,490.24
  5. Step 5: Solve for x
    x = 116,915,576,490.24/523,044.80
  6. Step 6: Final answer
    x = 223,528.80

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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.