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Finding the Fourth Proportional to 346,415.60, 519,796.20 and 196,770.80

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Solution

The fourth proportional to 346,415.60, 519,796.20 and 196,770.80 is: 295,254.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,415.60 : 519,796.20 = 196,770.80 : x
  2. Step 2: Convert to fraction form
    346,415.60/519,796.20 = 196,770.80/x
  3. Step 3: Cross multiply
    346,415.60x = 519,796.20 × 196,770.80
  4. Step 4: Simplify right side
    346,415.60x = 102,280,714,110.96
  5. Step 5: Solve for x
    x = 102,280,714,110.96/346,415.60
  6. Step 6: Final answer
    x = 295,254.35

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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.