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Finding the Fourth Proportional to 393,700.55, 543,306.62 and 214,852.55

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Solution

The fourth proportional to 393,700.55, 543,306.62 and 214,852.55 is: 296,496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,700.55 : 543,306.62 = 214,852.55 : x
  2. Step 2: Convert to fraction form
    393,700.55/543,306.62 = 214,852.55/x
  3. Step 3: Cross multiply
    393,700.55x = 543,306.62 × 214,852.55
  4. Step 4: Simplify right side
    393,700.55x = 116,730,811,664.62
  5. Step 5: Solve for x
    x = 116,730,811,664.62/393,700.55
  6. Step 6: Final answer
    x = 296,496.44

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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.