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Finding the Fourth Proportional to 543,524.65, 811,626.98 and 443,882.65

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Solution

The fourth proportional to 543,524.65, 811,626.98 and 443,882.65 is: 662,834.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,524.65 : 811,626.98 = 443,882.65 : x
  2. Step 2: Convert to fraction form
    543,524.65/811,626.98 = 443,882.65/x
  3. Step 3: Cross multiply
    543,524.65x = 811,626.98 × 443,882.65
  4. Step 4: Simplify right side
    543,524.65x = 360,267,134,693.90
  5. Step 5: Solve for x
    x = 360,267,134,693.90/543,524.65
  6. Step 6: Final answer
    x = 662,834.95

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.