Home / 661,548.34-913,115.16-432,100.75

Finding the Fourth Proportional to 661,548.34, 913,115.16 and 432,100.75

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Solution

The fourth proportional to 661,548.34, 913,115.16 and 432,100.75 is: 596,415.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,548.34 : 913,115.16 = 432,100.75 : x
  2. Step 2: Convert to fraction form
    661,548.34/913,115.16 = 432,100.75/x
  3. Step 3: Cross multiply
    661,548.34x = 913,115.16 × 432,100.75
  4. Step 4: Simplify right side
    661,548.34x = 394,557,745,472.37
  5. Step 5: Solve for x
    x = 394,557,745,472.37/661,548.34
  6. Step 6: Final answer
    x = 596,415.59

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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.