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Finding the Fourth Proportional to 443,461.68, 611,976.69 and 239,512.59

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Solution

The fourth proportional to 443,461.68, 611,976.69 and 239,512.59 is: 330,527.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,461.68 : 611,976.69 = 239,512.59 : x
  2. Step 2: Convert to fraction form
    443,461.68/611,976.69 = 239,512.59/x
  3. Step 3: Cross multiply
    443,461.68x = 611,976.69 × 239,512.59
  4. Step 4: Simplify right side
    443,461.68x = 146,576,122,041.53
  5. Step 5: Solve for x
    x = 146,576,122,041.53/443,461.68
  6. Step 6: Final answer
    x = 330,527.14

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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.