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Finding the Fourth Proportional to 543,172.70, 749,586.54 and 301,470.92

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Solution

The fourth proportional to 543,172.70, 749,586.54 and 301,470.92 is: 416,034.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,172.70 : 749,586.54 = 301,470.92 : x
  2. Step 2: Convert to fraction form
    543,172.70/749,586.54 = 301,470.92/x
  3. Step 3: Cross multiply
    543,172.70x = 749,586.54 × 301,470.92
  4. Step 4: Simplify right side
    543,172.70x = 225,978,543,833.42
  5. Step 5: Solve for x
    x = 225,978,543,833.42/543,172.70
  6. Step 6: Final answer
    x = 416,034.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.