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Finding the Fourth Proportional to 312,997.08, 469,218.59 and 150,809.16

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Solution

The fourth proportional to 312,997.08, 469,218.59 and 150,809.16 is: 226,080.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,997.08 : 469,218.59 = 150,809.16 : x
  2. Step 2: Convert to fraction form
    312,997.08/469,218.59 = 150,809.16/x
  3. Step 3: Cross multiply
    312,997.08x = 469,218.59 × 150,809.16
  4. Step 4: Simplify right side
    312,997.08x = 70,762,461,414.28
  5. Step 5: Solve for x
    x = 70,762,461,414.28/312,997.08
  6. Step 6: Final answer
    x = 226,080.26

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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.