Home / 641,882.40-885,579.66-369,941.64

Finding the Fourth Proportional to 641,882.40, 885,579.66 and 369,941.64

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Solution

The fourth proportional to 641,882.40, 885,579.66 and 369,941.64 is: 510,393.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,882.40 : 885,579.66 = 369,941.64 : x
  2. Step 2: Convert to fraction form
    641,882.40/885,579.66 = 369,941.64/x
  3. Step 3: Cross multiply
    641,882.40x = 885,579.66 × 369,941.64
  4. Step 4: Simplify right side
    641,882.40x = 327,612,791,771.04
  5. Step 5: Solve for x
    x = 327,612,791,771.04/641,882.40
  6. Step 6: Final answer
    x = 510,393.79

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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.