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Finding the Fourth Proportional to 326,505.56, 489,534.76 and 166,271.33

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Solution

The fourth proportional to 326,505.56, 489,534.76 and 166,271.33 is: 249,293.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,505.56 : 489,534.76 = 166,271.33 : x
  2. Step 2: Convert to fraction form
    326,505.56/489,534.76 = 166,271.33/x
  3. Step 3: Cross multiply
    326,505.56x = 489,534.76 × 166,271.33
  4. Step 4: Simplify right side
    326,505.56x = 81,395,593,571.24
  5. Step 5: Solve for x
    x = 81,395,593,571.24/326,505.56
  6. Step 6: Final answer
    x = 249,293.13

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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.