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Finding the Fourth Proportional to 404,711.28, 558,502.38 and 223,423.46

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Solution

The fourth proportional to 404,711.28, 558,502.38 and 223,423.46 is: 308,324.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,711.28 : 558,502.38 = 223,423.46 : x
  2. Step 2: Convert to fraction form
    404,711.28/558,502.38 = 223,423.46/x
  3. Step 3: Cross multiply
    404,711.28x = 558,502.38 × 223,423.46
  4. Step 4: Simplify right side
    404,711.28x = 124,782,534,157.84
  5. Step 5: Solve for x
    x = 124,782,534,157.84/404,711.28
  6. Step 6: Final answer
    x = 308,324.82

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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.