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Finding the Fourth Proportional to 526,796.19, 790,114.08 and 171,809.64

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Solution

The fourth proportional to 526,796.19, 790,114.08 and 171,809.64 is: 257,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,796.19 : 790,114.08 = 171,809.64 : x
  2. Step 2: Convert to fraction form
    526,796.19/790,114.08 = 171,809.64/x
  3. Step 3: Cross multiply
    526,796.19x = 790,114.08 × 171,809.64
  4. Step 4: Simplify right side
    526,796.19x = 135,749,215,643.73
  5. Step 5: Solve for x
    x = 135,749,215,643.73/526,796.19
  6. Step 6: Final answer
    x = 257,688.30

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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.