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Finding the Fourth Proportional to 326,387.88, 489,592.80 and 232,040.64

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Solution

The fourth proportional to 326,387.88, 489,592.80 and 232,040.64 is: 348,068.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,387.88 : 489,592.80 = 232,040.64 : x
  2. Step 2: Convert to fraction form
    326,387.88/489,592.80 = 232,040.64/x
  3. Step 3: Cross multiply
    326,387.88x = 489,592.80 × 232,040.64
  4. Step 4: Simplify right side
    326,387.88x = 113,605,426,651.39
  5. Step 5: Solve for x
    x = 113,605,426,651.39/326,387.88
  6. Step 6: Final answer
    x = 348,068.77

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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.