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Finding the Fourth Proportional to 326,561, 450,866.70 and 199,310.36

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Solution

The fourth proportional to 326,561, 450,866.70 and 199,310.36 is: 275,178.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,561 : 450,866.70 = 199,310.36 : x
  2. Step 2: Convert to fraction form
    326,561/450,866.70 = 199,310.36/x
  3. Step 3: Cross multiply
    326,561x = 450,866.70 × 199,310.36
  4. Step 4: Simplify right side
    326,561x = 89,862,404,289.01
  5. Step 5: Solve for x
    x = 89,862,404,289.01/326,561
  6. Step 6: Final answer
    x = 275,178.00

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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.