Home / 656,838.40-985,257.60-236,156.80

Finding the Fourth Proportional to 656,838.40, 985,257.60 and 236,156.80

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Solution

The fourth proportional to 656,838.40, 985,257.60 and 236,156.80 is: 354,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,838.40 : 985,257.60 = 236,156.80 : x
  2. Step 2: Convert to fraction form
    656,838.40/985,257.60 = 236,156.80/x
  3. Step 3: Cross multiply
    656,838.40x = 985,257.60 × 236,156.80
  4. Step 4: Simplify right side
    656,838.40x = 232,675,281,991.68
  5. Step 5: Solve for x
    x = 232,675,281,991.68/656,838.40
  6. Step 6: Final answer
    x = 354,235.20

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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.