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Finding the Fourth Proportional to 622,185.40, 932,586.90 and 341,903.80

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Solution

The fourth proportional to 622,185.40, 932,586.90 and 341,903.80 is: 512,475.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,185.40 : 932,586.90 = 341,903.80 : x
  2. Step 2: Convert to fraction form
    622,185.40/932,586.90 = 341,903.80/x
  3. Step 3: Cross multiply
    622,185.40x = 932,586.90 × 341,903.80
  4. Step 4: Simplify right side
    622,185.40x = 318,855,004,940.22
  5. Step 5: Solve for x
    x = 318,855,004,940.22/622,185.40
  6. Step 6: Final answer
    x = 512,475.87

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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.