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Finding the Fourth Proportional to 326,254.60, 489,223.67 and 191,362.75

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Solution

The fourth proportional to 326,254.60, 489,223.67 and 191,362.75 is: 286,951.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,254.60 : 489,223.67 = 191,362.75 : x
  2. Step 2: Convert to fraction form
    326,254.60/489,223.67 = 191,362.75/x
  3. Step 3: Cross multiply
    326,254.60x = 489,223.67 × 191,362.75
  4. Step 4: Simplify right side
    326,254.60x = 93,619,186,856.29
  5. Step 5: Solve for x
    x = 93,619,186,856.29/326,254.60
  6. Step 6: Final answer
    x = 286,951.32

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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.