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Finding the Fourth Proportional to 404,641.40, 558,405.19 and 223,353.37

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Solution

The fourth proportional to 404,641.40, 558,405.19 and 223,353.37 is: 308,227.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,641.40 : 558,405.19 = 223,353.37 : x
  2. Step 2: Convert to fraction form
    404,641.40/558,405.19 = 223,353.37/x
  3. Step 3: Cross multiply
    404,641.40x = 558,405.19 × 223,353.37
  4. Step 4: Simplify right side
    404,641.40x = 124,721,679,057.59
  5. Step 5: Solve for x
    x = 124,721,679,057.59/404,641.40
  6. Step 6: Final answer
    x = 308,227.68

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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.