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Finding the Fourth Proportional to 346,553.60, 520,003.20 and 196,908.80

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Solution

The fourth proportional to 346,553.60, 520,003.20 and 196,908.80 is: 295,461.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,553.60 : 520,003.20 = 196,908.80 : x
  2. Step 2: Convert to fraction form
    346,553.60/520,003.20 = 196,908.80/x
  3. Step 3: Cross multiply
    346,553.60x = 520,003.20 × 196,908.80
  4. Step 4: Simplify right side
    346,553.60x = 102,393,206,108.16
  5. Step 5: Solve for x
    x = 102,393,206,108.16/346,553.60
  6. Step 6: Final answer
    x = 295,461.38

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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.