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Finding the Fourth Proportional to 543,500.46, 811,590.75 and 443,858.31

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Solution

The fourth proportional to 543,500.46, 811,590.75 and 443,858.31 is: 662,798.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,500.46 : 811,590.75 = 443,858.31 : x
  2. Step 2: Convert to fraction form
    543,500.46/811,590.75 = 443,858.31/x
  3. Step 3: Cross multiply
    543,500.46x = 811,590.75 × 443,858.31
  4. Step 4: Simplify right side
    543,500.46x = 360,231,298,706.63
  5. Step 5: Solve for x
    x = 360,231,298,706.63/543,500.46
  6. Step 6: Final answer
    x = 662,798.52

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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.