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Finding the Fourth Proportional to 404,535.80, 606,803.70 and 262,818.20

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Solution

The fourth proportional to 404,535.80, 606,803.70 and 262,818.20 is: 394,227.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,535.80 : 606,803.70 = 262,818.20 : x
  2. Step 2: Convert to fraction form
    404,535.80/606,803.70 = 262,818.20/x
  3. Step 3: Cross multiply
    404,535.80x = 606,803.70 × 262,818.20
  4. Step 4: Simplify right side
    404,535.80x = 159,479,056,187.34
  5. Step 5: Solve for x
    x = 159,479,056,187.34/404,535.80
  6. Step 6: Final answer
    x = 394,227.30

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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.