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Finding the Fourth Proportional to 348,700.80, 523,051.20 and 269,871.60

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Solution

The fourth proportional to 348,700.80, 523,051.20 and 269,871.60 is: 404,807.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,700.80 : 523,051.20 = 269,871.60 : x
  2. Step 2: Convert to fraction form
    348,700.80/523,051.20 = 269,871.60/x
  3. Step 3: Cross multiply
    348,700.80x = 523,051.20 × 269,871.60
  4. Step 4: Simplify right side
    348,700.80x = 141,156,664,225.92
  5. Step 5: Solve for x
    x = 141,156,664,225.92/348,700.80
  6. Step 6: Final answer
    x = 404,807.40

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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.