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Finding the Fourth Proportional to 351,903.20, 527,509.20 and 174,437.60

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Solution

The fourth proportional to 351,903.20, 527,509.20 and 174,437.60 is: 261,485.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,903.20 : 527,509.20 = 174,437.60 : x
  2. Step 2: Convert to fraction form
    351,903.20/527,509.20 = 174,437.60/x
  3. Step 3: Cross multiply
    351,903.20x = 527,509.20 × 174,437.60
  4. Step 4: Simplify right side
    351,903.20x = 92,017,438,825.92
  5. Step 5: Solve for x
    x = 92,017,438,825.92/351,903.20
  6. Step 6: Final answer
    x = 261,485.09

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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.