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Finding the Fourth Proportional to 326,422.08, 489,239.28 and 168,564.24

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Solution

The fourth proportional to 326,422.08, 489,239.28 and 168,564.24 is: 252,642.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,422.08 : 489,239.28 = 168,564.24 : x
  2. Step 2: Convert to fraction form
    326,422.08/489,239.28 = 168,564.24/x
  3. Step 3: Cross multiply
    326,422.08x = 489,239.28 × 168,564.24
  4. Step 4: Simplify right side
    326,422.08x = 82,468,247,411.35
  5. Step 5: Solve for x
    x = 82,468,247,411.35/326,422.08
  6. Step 6: Final answer
    x = 252,642.98

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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.