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Finding the Fourth Proportional to 443,534.97, 612,078.50 and 239,585.89

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Solution

The fourth proportional to 443,534.97, 612,078.50 and 239,585.89 is: 330,628.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,534.97 : 612,078.50 = 239,585.89 : x
  2. Step 2: Convert to fraction form
    443,534.97/612,078.50 = 239,585.89/x
  3. Step 3: Cross multiply
    443,534.97x = 612,078.50 × 239,585.89
  4. Step 4: Simplify right side
    443,534.97x = 146,645,372,172.37
  5. Step 5: Solve for x
    x = 146,645,372,172.37/443,534.97
  6. Step 6: Final answer
    x = 330,628.66

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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.