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Finding the Fourth Proportional to 348,351.80, 480,744.50 and 195,438.42

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Solution

The fourth proportional to 348,351.80, 480,744.50 and 195,438.42 is: 269,715.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,351.80 : 480,744.50 = 195,438.42 : x
  2. Step 2: Convert to fraction form
    348,351.80/480,744.50 = 195,438.42/x
  3. Step 3: Cross multiply
    348,351.80x = 480,744.50 × 195,438.42
  4. Step 4: Simplify right side
    348,351.80x = 93,955,944,526.50
  5. Step 5: Solve for x
    x = 93,955,944,526.50/348,351.80
  6. Step 6: Final answer
    x = 269,715.69

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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.