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Finding the Fourth Proportional to 326,112.16, 489,010.24 and 191,213.12

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Solution

The fourth proportional to 326,112.16, 489,010.24 and 191,213.12 is: 286,727.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,112.16 : 489,010.24 = 191,213.12 : x
  2. Step 2: Convert to fraction form
    326,112.16/489,010.24 = 191,213.12/x
  3. Step 3: Cross multiply
    326,112.16x = 489,010.24 × 191,213.12
  4. Step 4: Simplify right side
    326,112.16x = 93,505,173,702.35
  5. Step 5: Solve for x
    x = 93,505,173,702.35/326,112.16
  6. Step 6: Final answer
    x = 286,727.04

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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.