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Finding the Fourth Proportional to 540,173.80, 809,765.34 and 207,499.24

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Solution

The fourth proportional to 540,173.80, 809,765.34 and 207,499.24 is: 311,058.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,173.80 : 809,765.34 = 207,499.24 : x
  2. Step 2: Convert to fraction form
    540,173.80/809,765.34 = 207,499.24/x
  3. Step 3: Cross multiply
    540,173.80x = 809,765.34 × 207,499.24
  4. Step 4: Simplify right side
    540,173.80x = 168,025,692,628.34
  5. Step 5: Solve for x
    x = 168,025,692,628.34/540,173.80
  6. Step 6: Final answer
    x = 311,058.58

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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.