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Finding the Fourth Proportional to 576,336.36, 864,427.96 and 171,521.30

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Solution

The fourth proportional to 576,336.36, 864,427.96 and 171,521.30 is: 257,259.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,336.36 : 864,427.96 = 171,521.30 : x
  2. Step 2: Convert to fraction form
    576,336.36/864,427.96 = 171,521.30/x
  3. Step 3: Cross multiply
    576,336.36x = 864,427.96 × 171,521.30
  4. Step 4: Simplify right side
    576,336.36x = 148,267,807,455.55
  5. Step 5: Solve for x
    x = 148,267,807,455.55/576,336.36
  6. Step 6: Final answer
    x = 257,259.16

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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.