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Finding the Fourth Proportional to 1,179,541.83, 1,769,309.76 and 326,610.63

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Solution

The fourth proportional to 1,179,541.83, 1,769,309.76 and 326,610.63 is: 489,915.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,541.83 : 1,769,309.76 = 326,610.63 : x
  2. Step 2: Convert to fraction form
    1,179,541.83/1,769,309.76 = 326,610.63/x
  3. Step 3: Cross multiply
    1,179,541.83x = 1,769,309.76 × 326,610.63
  4. Step 4: Simplify right side
    1,179,541.83x = 577,875,375,378.75
  5. Step 5: Solve for x
    x = 577,875,375,378.75/1,179,541.83
  6. Step 6: Final answer
    x = 489,915.12

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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.