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Finding the Fourth Proportional to 351,353.20, 527,029.80 and 193,500.40

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Solution

The fourth proportional to 351,353.20, 527,029.80 and 193,500.40 is: 290,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,353.20 : 527,029.80 = 193,500.40 : x
  2. Step 2: Convert to fraction form
    351,353.20/527,029.80 = 193,500.40/x
  3. Step 3: Cross multiply
    351,353.20x = 527,029.80 × 193,500.40
  4. Step 4: Simplify right side
    351,353.20x = 101,980,477,111.92
  5. Step 5: Solve for x
    x = 101,980,477,111.92/351,353.20
  6. Step 6: Final answer
    x = 290,250.60

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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.