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Finding the Fourth Proportional to 402,409.27, 555,292.29 and 232,654.33

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Solution

The fourth proportional to 402,409.27, 555,292.29 and 232,654.33 is: 321,044.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,409.27 : 555,292.29 = 232,654.33 : x
  2. Step 2: Convert to fraction form
    402,409.27/555,292.29 = 232,654.33/x
  3. Step 3: Cross multiply
    402,409.27x = 555,292.29 × 232,654.33
  4. Step 4: Simplify right side
    402,409.27x = 129,191,155,684.12
  5. Step 5: Solve for x
    x = 129,191,155,684.12/402,409.27
  6. Step 6: Final answer
    x = 321,044.18

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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.