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Finding the Fourth Proportional to 326,350.81, 489,406.61 and 113,063.63

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Solution

The fourth proportional to 326,350.81, 489,406.61 and 113,063.63 is: 169,554.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,350.81 : 489,406.61 = 113,063.63 : x
  2. Step 2: Convert to fraction form
    326,350.81/489,406.61 = 113,063.63/x
  3. Step 3: Cross multiply
    326,350.81x = 489,406.61 × 113,063.63
  4. Step 4: Simplify right side
    326,350.81x = 55,334,087,872.59
  5. Step 5: Solve for x
    x = 55,334,087,872.59/326,350.81
  6. Step 6: Final answer
    x = 169,554.01

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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.