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Finding the Fourth Proportional to 348,529.60, 523,312.80 and 269,732.80

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Solution

The fourth proportional to 348,529.60, 523,312.80 and 269,732.80 is: 405,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,529.60 : 523,312.80 = 269,732.80 : x
  2. Step 2: Convert to fraction form
    348,529.60/523,312.80 = 269,732.80/x
  3. Step 3: Cross multiply
    348,529.60x = 523,312.80 × 269,732.80
  4. Step 4: Simplify right side
    348,529.60x = 141,154,626,819.84
  5. Step 5: Solve for x
    x = 141,154,626,819.84/348,529.60
  6. Step 6: Final answer
    x = 405,000.40

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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.