Home / 637,686.99-879,942.93-392,632.83

Finding the Fourth Proportional to 637,686.99, 879,942.93 and 392,632.83

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Solution

The fourth proportional to 637,686.99, 879,942.93 and 392,632.83 is: 541,793.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,686.99 : 879,942.93 = 392,632.83 : x
  2. Step 2: Convert to fraction form
    637,686.99/879,942.93 = 392,632.83/x
  3. Step 3: Cross multiply
    637,686.99x = 879,942.93 × 392,632.83
  4. Step 4: Simplify right side
    637,686.99x = 345,494,481,372.02
  5. Step 5: Solve for x
    x = 345,494,481,372.02/637,686.99
  6. Step 6: Final answer
    x = 541,793.21

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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.