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Finding the Fourth Proportional to 346,415.10, 519,795.45 and 196,770.30

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Solution

The fourth proportional to 346,415.10, 519,795.45 and 196,770.30 is: 295,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,415.10 : 519,795.45 = 196,770.30 : x
  2. Step 2: Convert to fraction form
    346,415.10/519,795.45 = 196,770.30/x
  3. Step 3: Cross multiply
    346,415.10x = 519,795.45 × 196,770.30
  4. Step 4: Simplify right side
    346,415.10x = 102,280,306,635.14
  5. Step 5: Solve for x
    x = 102,280,306,635.14/346,415.10
  6. Step 6: Final answer
    x = 295,253.60

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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.