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Finding the Fourth Proportional to 385,525.64, 532,007.24 and 211,092.68

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Solution

The fourth proportional to 385,525.64, 532,007.24 and 211,092.68 is: 291,297.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,525.64 : 532,007.24 = 211,092.68 : x
  2. Step 2: Convert to fraction form
    385,525.64/532,007.24 = 211,092.68/x
  3. Step 3: Cross multiply
    385,525.64x = 532,007.24 × 211,092.68
  4. Step 4: Simplify right side
    385,525.64x = 112,302,834,071.00
  5. Step 5: Solve for x
    x = 112,302,834,071.00/385,525.64
  6. Step 6: Final answer
    x = 291,297.96

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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.