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Finding the Fourth Proportional to 382,503.48, 527,803.50 and 212,704.92

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Solution

The fourth proportional to 382,503.48, 527,803.50 and 212,704.92 is: 293,504.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,503.48 : 527,803.50 = 212,704.92 : x
  2. Step 2: Convert to fraction form
    382,503.48/527,803.50 = 212,704.92/x
  3. Step 3: Cross multiply
    382,503.48x = 527,803.50 × 212,704.92
  4. Step 4: Simplify right side
    382,503.48x = 112,266,401,243.22
  5. Step 5: Solve for x
    x = 112,266,401,243.22/382,503.48
  6. Step 6: Final answer
    x = 293,504.26

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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.