Home / 695,142.14-959,073.20-389,173.56

Finding the Fourth Proportional to 695,142.14, 959,073.20 and 389,173.56

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Solution

The fourth proportional to 695,142.14, 959,073.20 and 389,173.56 is: 536,934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,142.14 : 959,073.20 = 389,173.56 : x
  2. Step 2: Convert to fraction form
    695,142.14/959,073.20 = 389,173.56/x
  3. Step 3: Cross multiply
    695,142.14x = 959,073.20 × 389,173.56
  4. Step 4: Simplify right side
    695,142.14x = 373,245,931,544.59
  5. Step 5: Solve for x
    x = 373,245,931,544.59/695,142.14
  6. Step 6: Final answer
    x = 536,934.69

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Double scale
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1.5x scale

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.