Home / 641,544.28-885,253.44-369,701.26

Finding the Fourth Proportional to 641,544.28, 885,253.44 and 369,701.26

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Solution

The fourth proportional to 641,544.28, 885,253.44 and 369,701.26 is: 510,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,544.28 : 885,253.44 = 369,701.26 : x
  2. Step 2: Convert to fraction form
    641,544.28/885,253.44 = 369,701.26/x
  3. Step 3: Cross multiply
    641,544.28x = 885,253.44 × 369,701.26
  4. Step 4: Simplify right side
    641,544.28x = 327,279,312,187.33
  5. Step 5: Solve for x
    x = 327,279,312,187.33/641,544.28
  6. Step 6: Final answer
    x = 510,142.98

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.