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Finding the Fourth Proportional to 529,525.86, 730,753.08 and 287,808.36

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Solution

The fourth proportional to 529,525.86, 730,753.08 and 287,808.36 is: 397,179.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,525.86 : 730,753.08 = 287,808.36 : x
  2. Step 2: Convert to fraction form
    529,525.86/730,753.08 = 287,808.36/x
  3. Step 3: Cross multiply
    529,525.86x = 730,753.08 × 287,808.36
  4. Step 4: Simplify right side
    529,525.86x = 210,316,845,519.75
  5. Step 5: Solve for x
    x = 210,316,845,519.75/529,525.86
  6. Step 6: Final answer
    x = 397,179.56

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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.