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Finding the Fourth Proportional to 543,518.65, 811,618.04 and 443,876.65

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Solution

The fourth proportional to 543,518.65, 811,618.04 and 443,876.65 is: 662,826.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,518.65 : 811,618.04 = 443,876.65 : x
  2. Step 2: Convert to fraction form
    543,518.65/811,618.04 = 443,876.65/x
  3. Step 3: Cross multiply
    543,518.65x = 811,618.04 × 443,876.65
  4. Step 4: Simplify right side
    543,518.65x = 360,258,296,674.77
  5. Step 5: Solve for x
    x = 360,258,296,674.77/543,518.65
  6. Step 6: Final answer
    x = 662,826.01

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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.