Home / 641,898.17-885,757.21-383,723.36

Finding the Fourth Proportional to 641,898.17, 885,757.21 and 383,723.36

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Solution

The fourth proportional to 641,898.17, 885,757.21 and 383,723.36 is: 529,501.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,898.17 : 885,757.21 = 383,723.36 : x
  2. Step 2: Convert to fraction form
    641,898.17/885,757.21 = 383,723.36/x
  3. Step 3: Cross multiply
    641,898.17x = 885,757.21 × 383,723.36
  4. Step 4: Simplify right side
    641,898.17x = 339,885,730,698.92
  5. Step 5: Solve for x
    x = 339,885,730,698.92/641,898.17
  6. Step 6: Final answer
    x = 529,501.01

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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.