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Finding the Fourth Proportional to 326,895.44, 489,429.62 and 176,597.28

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Solution

The fourth proportional to 326,895.44, 489,429.62 and 176,597.28 is: 264,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,895.44 : 489,429.62 = 176,597.28 : x
  2. Step 2: Convert to fraction form
    326,895.44/489,429.62 = 176,597.28/x
  3. Step 3: Cross multiply
    326,895.44x = 489,429.62 × 176,597.28
  4. Step 4: Simplify right side
    326,895.44x = 86,431,939,643.43
  5. Step 5: Solve for x
    x = 86,431,939,643.43/326,895.44
  6. Step 6: Final answer
    x = 264,402.40

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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.