Home / 656,040.55-905,026.43-383,939.89

Finding the Fourth Proportional to 656,040.55, 905,026.43 and 383,939.89

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Solution

The fourth proportional to 656,040.55, 905,026.43 and 383,939.89 is: 529,655.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,040.55 : 905,026.43 = 383,939.89 : x
  2. Step 2: Convert to fraction form
    656,040.55/905,026.43 = 383,939.89/x
  3. Step 3: Cross multiply
    656,040.55x = 905,026.43 × 383,939.89
  4. Step 4: Simplify right side
    656,040.55x = 347,475,747,981.29
  5. Step 5: Solve for x
    x = 347,475,747,981.29/656,040.55
  6. Step 6: Final answer
    x = 529,655.90

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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.