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Finding the Fourth Proportional to 421,392.30, 632,071.66 and 232,227.73

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Solution

The fourth proportional to 421,392.30, 632,071.66 and 232,227.73 is: 348,332.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,392.30 : 632,071.66 = 232,227.73 : x
  2. Step 2: Convert to fraction form
    421,392.30/632,071.66 = 232,227.73/x
  3. Step 3: Cross multiply
    421,392.30x = 632,071.66 × 232,227.73
  4. Step 4: Simplify right side
    421,392.30x = 146,784,566,799.13
  5. Step 5: Solve for x
    x = 146,784,566,799.13/421,392.30
  6. Step 6: Final answer
    x = 348,332.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.