Home / 861,346.37-1,188,658.00-479,463.37

Finding the Fourth Proportional to 861,346.37, 1,188,658.00 and 479,463.37

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Solution

The fourth proportional to 861,346.37, 1,188,658.00 and 479,463.37 is: 661,659.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,346.37 : 1,188,658.00 = 479,463.37 : x
  2. Step 2: Convert to fraction form
    861,346.37/1,188,658.00 = 479,463.37/x
  3. Step 3: Cross multiply
    861,346.37x = 1,188,658.00 × 479,463.37
  4. Step 4: Simplify right side
    861,346.37x = 569,917,966,287.16
  5. Step 5: Solve for x
    x = 569,917,966,287.16/861,346.37
  6. Step 6: Final answer
    x = 661,659.45

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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.