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Finding the Fourth Proportional to 526,644.36, 790,048.44 and 171,575.64

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Solution

The fourth proportional to 526,644.36, 790,048.44 and 171,575.64 is: 257,390.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,644.36 : 790,048.44 = 171,575.64 : x
  2. Step 2: Convert to fraction form
    526,644.36/790,048.44 = 171,575.64/x
  3. Step 3: Cross multiply
    526,644.36x = 790,048.44 × 171,575.64
  4. Step 4: Simplify right side
    526,644.36x = 135,553,066,724.00
  5. Step 5: Solve for x
    x = 135,553,066,724.00/526,644.36
  6. Step 6: Final answer
    x = 257,390.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.