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Finding the Fourth Proportional to 326,365.16, 489,436.84 and 113,083.30

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Solution

The fourth proportional to 326,365.16, 489,436.84 and 113,083.30 is: 169,586.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,365.16 : 489,436.84 = 113,083.30 : x
  2. Step 2: Convert to fraction form
    326,365.16/489,436.84 = 113,083.30/x
  3. Step 3: Cross multiply
    326,365.16x = 489,436.84 × 113,083.30
  4. Step 4: Simplify right side
    326,365.16x = 55,347,133,008.77
  5. Step 5: Solve for x
    x = 55,347,133,008.77/326,365.16
  6. Step 6: Final answer
    x = 169,586.52

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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.