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Finding the Fourth Proportional to 411,417.56, 567,738.78 and 239,335.94

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Solution

The fourth proportional to 411,417.56, 567,738.78 and 239,335.94 is: 330,273.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,417.56 : 567,738.78 = 239,335.94 : x
  2. Step 2: Convert to fraction form
    411,417.56/567,738.78 = 239,335.94/x
  3. Step 3: Cross multiply
    411,417.56x = 567,738.78 × 239,335.94
  4. Step 4: Simplify right side
    411,417.56x = 135,880,294,585.75
  5. Step 5: Solve for x
    x = 135,880,294,585.75/411,417.56
  6. Step 6: Final answer
    x = 330,273.44

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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.