Home / 695,182.23-959,128.43-389,213.55

Finding the Fourth Proportional to 695,182.23, 959,128.43 and 389,213.55

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Solution

The fourth proportional to 695,182.23, 959,128.43 and 389,213.55 is: 536,989.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,182.23 : 959,128.43 = 389,213.55 : x
  2. Step 2: Convert to fraction form
    695,182.23/959,128.43 = 389,213.55/x
  3. Step 3: Cross multiply
    695,182.23x = 959,128.43 × 389,213.55
  4. Step 4: Simplify right side
    695,182.23x = 373,305,779,200.16
  5. Step 5: Solve for x
    x = 373,305,779,200.16/695,182.23
  6. Step 6: Final answer
    x = 536,989.82

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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.