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Finding the Fourth Proportional to 538,086.76, 742,548.90 and 336,993.64

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Solution

The fourth proportional to 538,086.76, 742,548.90 and 336,993.64 is: 465,044.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,086.76 : 742,548.90 = 336,993.64 : x
  2. Step 2: Convert to fraction form
    538,086.76/742,548.90 = 336,993.64/x
  3. Step 3: Cross multiply
    538,086.76x = 742,548.90 × 336,993.64
  4. Step 4: Simplify right side
    538,086.76x = 250,234,256,689.00
  5. Step 5: Solve for x
    x = 250,234,256,689.00/538,086.76
  6. Step 6: Final answer
    x = 465,044.44

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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.