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Finding the Fourth Proportional to 518,986.66, 716,185.36 and 304,269.74

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Solution

The fourth proportional to 518,986.66, 716,185.36 and 304,269.74 is: 419,882.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,986.66 : 716,185.36 = 304,269.74 : x
  2. Step 2: Convert to fraction form
    518,986.66/716,185.36 = 304,269.74/x
  3. Step 3: Cross multiply
    518,986.66x = 716,185.36 × 304,269.74
  4. Step 4: Simplify right side
    518,986.66x = 217,913,533,279.01
  5. Step 5: Solve for x
    x = 217,913,533,279.01/518,986.66
  6. Step 6: Final answer
    x = 419,882.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.