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Finding the Fourth Proportional to 346,693.80, 520,040.70 and 196,876.20

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Solution

The fourth proportional to 346,693.80, 520,040.70 and 196,876.20 is: 295,314.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,693.80 : 520,040.70 = 196,876.20 : x
  2. Step 2: Convert to fraction form
    346,693.80/520,040.70 = 196,876.20/x
  3. Step 3: Cross multiply
    346,693.80x = 520,040.70 × 196,876.20
  4. Step 4: Simplify right side
    346,693.80x = 102,383,636,861.34
  5. Step 5: Solve for x
    x = 102,383,636,861.34/346,693.80
  6. Step 6: Final answer
    x = 295,314.30

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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.