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Finding the Fourth Proportional to 324,356.10, 486,145.35 and 166,503.30

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Solution

The fourth proportional to 324,356.10, 486,145.35 and 166,503.30 is: 249,555.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,356.10 : 486,145.35 = 166,503.30 : x
  2. Step 2: Convert to fraction form
    324,356.10/486,145.35 = 166,503.30/x
  3. Step 3: Cross multiply
    324,356.10x = 486,145.35 × 166,503.30
  4. Step 4: Simplify right side
    324,356.10x = 80,944,805,054.66
  5. Step 5: Solve for x
    x = 80,944,805,054.66/324,356.10
  6. Step 6: Final answer
    x = 249,555.37

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1.5x scale

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.