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Finding the Fourth Proportional to 346,657.20, 520,058.70 and 196,774.80

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Solution

The fourth proportional to 346,657.20, 520,058.70 and 196,774.80 is: 295,203.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,657.20 : 520,058.70 = 196,774.80 : x
  2. Step 2: Convert to fraction form
    346,657.20/520,058.70 = 196,774.80/x
  3. Step 3: Cross multiply
    346,657.20x = 520,058.70 × 196,774.80
  4. Step 4: Simplify right side
    346,657.20x = 102,334,446,680.76
  5. Step 5: Solve for x
    x = 102,334,446,680.76/346,657.20
  6. Step 6: Final answer
    x = 295,203.58

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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.