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Finding the Fourth Proportional to 554,974.80, 832,462.20 and 200,000.40

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Solution

The fourth proportional to 554,974.80, 832,462.20 and 200,000.40 is: 300,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,974.80 : 832,462.20 = 200,000.40 : x
  2. Step 2: Convert to fraction form
    554,974.80/832,462.20 = 200,000.40/x
  3. Step 3: Cross multiply
    554,974.80x = 832,462.20 × 200,000.40
  4. Step 4: Simplify right side
    554,974.80x = 166,492,772,984.88
  5. Step 5: Solve for x
    x = 166,492,772,984.88/554,974.80
  6. Step 6: Final answer
    x = 300,000.60

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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.