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Finding the Fourth Proportional to 518,752.67, 715,933.72 and 304,073.10

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Solution

The fourth proportional to 518,752.67, 715,933.72 and 304,073.10 is: 419,653.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,752.67 : 715,933.72 = 304,073.10 : x
  2. Step 2: Convert to fraction form
    518,752.67/715,933.72 = 304,073.10/x
  3. Step 3: Cross multiply
    518,752.67x = 715,933.72 × 304,073.10
  4. Step 4: Simplify right side
    518,752.67x = 217,696,185,634.93
  5. Step 5: Solve for x
    x = 217,696,185,634.93/518,752.67
  6. Step 6: Final answer
    x = 419,653.14

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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.