Home / 624,614.42-861,960.75-338,128.22

Finding the Fourth Proportional to 624,614.42, 861,960.75 and 338,128.22

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Solution

The fourth proportional to 624,614.42, 861,960.75 and 338,128.22 is: 466,613.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,614.42 : 861,960.75 = 338,128.22 : x
  2. Step 2: Convert to fraction form
    624,614.42/861,960.75 = 338,128.22/x
  3. Step 3: Cross multiply
    624,614.42x = 861,960.75 × 338,128.22
  4. Step 4: Simplify right side
    624,614.42x = 291,453,254,107.37
  5. Step 5: Solve for x
    x = 291,453,254,107.37/624,614.42
  6. Step 6: Final answer
    x = 466,613.07

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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.