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Finding the Fourth Proportional to 528,392.60, 792,649.04 and 191,591.88

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Solution

The fourth proportional to 528,392.60, 792,649.04 and 191,591.88 is: 287,409.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,392.60 : 792,649.04 = 191,591.88 : x
  2. Step 2: Convert to fraction form
    528,392.60/792,649.04 = 191,591.88/x
  3. Step 3: Cross multiply
    528,392.60x = 792,649.04 × 191,591.88
  4. Step 4: Simplify right side
    528,392.60x = 151,865,119,753.80
  5. Step 5: Solve for x
    x = 151,865,119,753.80/528,392.60
  6. Step 6: Final answer
    x = 287,409.63

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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.