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Finding the Fourth Proportional to 540,924.70, 811,463.85 and 166,908.70

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Solution

The fourth proportional to 540,924.70, 811,463.85 and 166,908.70 is: 250,386.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,924.70 : 811,463.85 = 166,908.70 : x
  2. Step 2: Convert to fraction form
    540,924.70/811,463.85 = 166,908.70/x
  3. Step 3: Cross multiply
    540,924.70x = 811,463.85 × 166,908.70
  4. Step 4: Simplify right side
    540,924.70x = 135,440,376,300.50
  5. Step 5: Solve for x
    x = 135,440,376,300.50/540,924.70
  6. Step 6: Final answer
    x = 250,386.75

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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.