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Finding the Fourth Proportional to 344,796.16, 475,809.20 and 208,910.56

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Solution

The fourth proportional to 344,796.16, 475,809.20 and 208,910.56 is: 288,290.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,796.16 : 475,809.20 = 208,910.56 : x
  2. Step 2: Convert to fraction form
    344,796.16/475,809.20 = 208,910.56/x
  3. Step 3: Cross multiply
    344,796.16x = 475,809.20 × 208,910.56
  4. Step 4: Simplify right side
    344,796.16x = 99,401,566,425.15
  5. Step 5: Solve for x
    x = 99,401,566,425.15/344,796.16
  6. Step 6: Final answer
    x = 288,290.82

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1.5x scale

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.