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Finding the Fourth Proportional to 528,235.50, 792,414.87 and 191,434.80

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Solution

The fourth proportional to 528,235.50, 792,414.87 and 191,434.80 is: 287,174.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,235.50 : 792,414.87 = 191,434.80 : x
  2. Step 2: Convert to fraction form
    528,235.50/792,414.87 = 191,434.80/x
  3. Step 3: Cross multiply
    528,235.50x = 792,414.87 × 191,434.80
  4. Step 4: Simplify right side
    528,235.50x = 151,695,782,155.48
  5. Step 5: Solve for x
    x = 151,695,782,155.48/528,235.50
  6. Step 6: Final answer
    x = 287,174.53

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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.