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Finding the Fourth Proportional to 285,492.12, 394,164 and 183,563.36

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Solution

The fourth proportional to 285,492.12, 394,164 and 183,563.36 is: 253,436.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,492.12 : 394,164 = 183,563.36 : x
  2. Step 2: Convert to fraction form
    285,492.12/394,164 = 183,563.36/x
  3. Step 3: Cross multiply
    285,492.12x = 394,164 × 183,563.36
  4. Step 4: Simplify right side
    285,492.12x = 72,354,068,231.04
  5. Step 5: Solve for x
    x = 72,354,068,231.04/285,492.12
  6. Step 6: Final answer
    x = 253,436.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.