Home / 499,584.70-689,434.15-281,803.77

Finding the Fourth Proportional to 499,584.70, 689,434.15 and 281,803.77

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Solution

The fourth proportional to 499,584.70, 689,434.15 and 281,803.77 is: 388,893.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,584.70 : 689,434.15 = 281,803.77 : x
  2. Step 2: Convert to fraction form
    499,584.70/689,434.15 = 281,803.77/x
  3. Step 3: Cross multiply
    499,584.70x = 689,434.15 × 281,803.77
  4. Step 4: Simplify right side
    499,584.70x = 194,285,142,636.75
  5. Step 5: Solve for x
    x = 194,285,142,636.75/499,584.70
  6. Step 6: Final answer
    x = 388,893.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.