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Finding the Fourth Proportional to 348,522.30, 522,783.45 and 269,693.10

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Solution

The fourth proportional to 348,522.30, 522,783.45 and 269,693.10 is: 404,539.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,522.30 : 522,783.45 = 269,693.10 : x
  2. Step 2: Convert to fraction form
    348,522.30/522,783.45 = 269,693.10/x
  3. Step 3: Cross multiply
    348,522.30x = 522,783.45 × 269,693.10
  4. Step 4: Simplify right side
    348,522.30x = 140,991,089,259.20
  5. Step 5: Solve for x
    x = 140,991,089,259.20/348,522.30
  6. Step 6: Final answer
    x = 404,539.65

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Similar ratio
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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.