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Finding the Fourth Proportional to 540,934.20, 811,478.10 and 166,918.20

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Solution

The fourth proportional to 540,934.20, 811,478.10 and 166,918.20 is: 250,401.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,934.20 : 811,478.10 = 166,918.20 : x
  2. Step 2: Convert to fraction form
    540,934.20/811,478.10 = 166,918.20/x
  3. Step 3: Cross multiply
    540,934.20x = 811,478.10 × 166,918.20
  4. Step 4: Simplify right side
    540,934.20x = 135,450,463,791.42
  5. Step 5: Solve for x
    x = 135,450,463,791.42/540,934.20
  6. Step 6: Final answer
    x = 250,401.00

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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.