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Finding the Fourth Proportional to 357,291.41, 535,236.45 and 207,216.43

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Solution

The fourth proportional to 357,291.41, 535,236.45 and 207,216.43 is: 310,418.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,291.41 : 535,236.45 = 207,216.43 : x
  2. Step 2: Convert to fraction form
    357,291.41/535,236.45 = 207,216.43/x
  3. Step 3: Cross multiply
    357,291.41x = 535,236.45 × 207,216.43
  4. Step 4: Simplify right side
    357,291.41x = 110,909,786,374.87
  5. Step 5: Solve for x
    x = 110,909,786,374.87/357,291.41
  6. Step 6: Final answer
    x = 310,418.28

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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.