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Finding the Fourth Proportional to 402,408.27, 555,290.91 and 232,653.33

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Solution

The fourth proportional to 402,408.27, 555,290.91 and 232,653.33 is: 321,042.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,408.27 : 555,290.91 = 232,653.33 : x
  2. Step 2: Convert to fraction form
    402,408.27/555,290.91 = 232,653.33/x
  3. Step 3: Cross multiply
    402,408.27x = 555,290.91 × 232,653.33
  4. Step 4: Simplify right side
    402,408.27x = 129,190,279,330.23
  5. Step 5: Solve for x
    x = 129,190,279,330.23/402,408.27
  6. Step 6: Final answer
    x = 321,042.80

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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.