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Finding the Fourth Proportional to 443,331.75, 611,801.70 and 252,357.42

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Solution

The fourth proportional to 443,331.75, 611,801.70 and 252,357.42 is: 348,255.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,331.75 : 611,801.70 = 252,357.42 : x
  2. Step 2: Convert to fraction form
    443,331.75/611,801.70 = 252,357.42/x
  3. Step 3: Cross multiply
    443,331.75x = 611,801.70 × 252,357.42
  4. Step 4: Simplify right side
    443,331.75x = 154,392,698,563.61
  5. Step 5: Solve for x
    x = 154,392,698,563.61/443,331.75
  6. Step 6: Final answer
    x = 348,255.45

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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.