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Finding the Fourth Proportional to 326,449.58, 489,378.92 and 116,038.31

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Solution

The fourth proportional to 326,449.58, 489,378.92 and 116,038.31 is: 173,952.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,449.58 : 489,378.92 = 116,038.31 : x
  2. Step 2: Convert to fraction form
    326,449.58/489,378.92 = 116,038.31/x
  3. Step 3: Cross multiply
    326,449.58x = 489,378.92 × 116,038.31
  4. Step 4: Simplify right side
    326,449.58x = 56,786,699,799.34
  5. Step 5: Solve for x
    x = 56,786,699,799.34/326,449.58
  6. Step 6: Final answer
    x = 173,952.44

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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.