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Finding the Fourth Proportional to 364,985.20, 546,556.20 and 291,257.20

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Solution

The fourth proportional to 364,985.20, 546,556.20 and 291,257.20 is: 436,150.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,985.20 : 546,556.20 = 291,257.20 : x
  2. Step 2: Convert to fraction form
    364,985.20/546,556.20 = 291,257.20/x
  3. Step 3: Cross multiply
    364,985.20x = 546,556.20 × 291,257.20
  4. Step 4: Simplify right side
    364,985.20x = 159,188,428,454.64
  5. Step 5: Solve for x
    x = 159,188,428,454.64/364,985.20
  6. Step 6: Final answer
    x = 436,150.37

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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.