Home / 619,619.53-855,160.07-347,703.50

Finding the Fourth Proportional to 619,619.53, 855,160.07 and 347,703.50

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Solution

The fourth proportional to 619,619.53, 855,160.07 and 347,703.50 is: 479,878.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,619.53 : 855,160.07 = 347,703.50 : x
  2. Step 2: Convert to fraction form
    619,619.53/855,160.07 = 347,703.50/x
  3. Step 3: Cross multiply
    619,619.53x = 855,160.07 × 347,703.50
  4. Step 4: Simplify right side
    619,619.53x = 297,342,149,399.25
  5. Step 5: Solve for x
    x = 297,342,149,399.25/619,619.53
  6. Step 6: Final answer
    x = 479,878.59

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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.