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Finding the Fourth Proportional to 526,947.55, 790,503.95 and 171,879.59

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Solution

The fourth proportional to 526,947.55, 790,503.95 and 171,879.59 is: 257,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,947.55 : 790,503.95 = 171,879.59 : x
  2. Step 2: Convert to fraction form
    526,947.55/790,503.95 = 171,879.59/x
  3. Step 3: Cross multiply
    526,947.55x = 790,503.95 × 171,879.59
  4. Step 4: Simplify right side
    526,947.55x = 135,871,494,819.38
  5. Step 5: Solve for x
    x = 135,871,494,819.38/526,947.55
  6. Step 6: Final answer
    x = 257,846.34

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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.