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Finding the Fourth Proportional to 386,059.06, 532,783.29 and 216,347.86

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Solution

The fourth proportional to 386,059.06, 532,783.29 and 216,347.86 is: 298,572.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,059.06 : 532,783.29 = 216,347.86 : x
  2. Step 2: Convert to fraction form
    386,059.06/532,783.29 = 216,347.86/x
  3. Step 3: Cross multiply
    386,059.06x = 532,783.29 × 216,347.86
  4. Step 4: Simplify right side
    386,059.06x = 115,266,524,635.26
  5. Step 5: Solve for x
    x = 115,266,524,635.26/386,059.06
  6. Step 6: Final answer
    x = 298,572.26

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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.