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Finding the Fourth Proportional to 443,478.48, 612,000.09 and 239,529.30

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Solution

The fourth proportional to 443,478.48, 612,000.09 and 239,529.30 is: 330,550.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,478.48 : 612,000.09 = 239,529.30 : x
  2. Step 2: Convert to fraction form
    443,478.48/612,000.09 = 239,529.30/x
  3. Step 3: Cross multiply
    443,478.48x = 612,000.09 × 239,529.30
  4. Step 4: Simplify right side
    443,478.48x = 146,591,953,157.64
  5. Step 5: Solve for x
    x = 146,591,953,157.64/443,478.48
  6. Step 6: Final answer
    x = 330,550.32

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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.