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Finding the Fourth Proportional to 443,905.99, 612,650.25 and 250,353.48

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Solution

The fourth proportional to 443,905.99, 612,650.25 and 250,353.48 is: 345,521.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,905.99 : 612,650.25 = 250,353.48 : x
  2. Step 2: Convert to fraction form
    443,905.99/612,650.25 = 250,353.48/x
  3. Step 3: Cross multiply
    443,905.99x = 612,650.25 × 250,353.48
  4. Step 4: Simplify right side
    443,905.99x = 153,379,124,407.81
  5. Step 5: Solve for x
    x = 153,379,124,407.81/443,905.99
  6. Step 6: Final answer
    x = 345,521.64

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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.