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Finding the Fourth Proportional to 381,946.61, 575,204.89 and 347,896.55

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Solution

The fourth proportional to 381,946.61, 575,204.89 and 347,896.55 is: 523,926.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,946.61 : 575,204.89 = 347,896.55 : x
  2. Step 2: Convert to fraction form
    381,946.61/575,204.89 = 347,896.55/x
  3. Step 3: Cross multiply
    381,946.61x = 575,204.89 × 347,896.55
  4. Step 4: Simplify right side
    381,946.61x = 200,111,793,596.64
  5. Step 5: Solve for x
    x = 200,111,793,596.64/381,946.61
  6. Step 6: Final answer
    x = 523,926.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.