Home / 641,144.80-961,717.20-346,232.80

Finding the Fourth Proportional to 641,144.80, 961,717.20 and 346,232.80

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Solution

The fourth proportional to 641,144.80, 961,717.20 and 346,232.80 is: 519,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,144.80 : 961,717.20 = 346,232.80 : x
  2. Step 2: Convert to fraction form
    641,144.80/961,717.20 = 346,232.80/x
  3. Step 3: Cross multiply
    641,144.80x = 961,717.20 × 346,232.80
  4. Step 4: Simplify right side
    641,144.80x = 332,978,038,964.16
  5. Step 5: Solve for x
    x = 332,978,038,964.16/641,144.80
  6. Step 6: Final answer
    x = 519,349.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.