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Finding the Fourth Proportional to 517,718.80, 776,689.08 and 293,185.36

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Solution

The fourth proportional to 517,718.80, 776,689.08 and 293,185.36 is: 439,840.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,718.80 : 776,689.08 = 293,185.36 : x
  2. Step 2: Convert to fraction form
    517,718.80/776,689.08 = 293,185.36/x
  3. Step 3: Cross multiply
    517,718.80x = 776,689.08 × 293,185.36
  4. Step 4: Simplify right side
    517,718.80x = 227,713,867,527.87
  5. Step 5: Solve for x
    x = 227,713,867,527.87/517,718.80
  6. Step 6: Final answer
    x = 439,840.83

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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.