Home / 656,065.20-983,478.60-356,103.60

Finding the Fourth Proportional to 656,065.20, 983,478.60 and 356,103.60

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Solution

The fourth proportional to 656,065.20, 983,478.60 and 356,103.60 is: 533,819.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,065.20 : 983,478.60 = 356,103.60 : x
  2. Step 2: Convert to fraction form
    656,065.20/983,478.60 = 356,103.60/x
  3. Step 3: Cross multiply
    656,065.20x = 983,478.60 × 356,103.60
  4. Step 4: Simplify right side
    656,065.20x = 350,220,269,982.96
  5. Step 5: Solve for x
    x = 350,220,269,982.96/656,065.20
  6. Step 6: Final answer
    x = 533,819.31

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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.