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Finding the Fourth Proportional to 516,453.29, 774,724.58 and 142,476.29

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Solution

The fourth proportional to 516,453.29, 774,724.58 and 142,476.29 is: 213,726.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,453.29 : 774,724.58 = 142,476.29 : x
  2. Step 2: Convert to fraction form
    516,453.29/774,724.58 = 142,476.29/x
  3. Step 3: Cross multiply
    516,453.29x = 774,724.58 × 142,476.29
  4. Step 4: Simplify right side
    516,453.29x = 110,379,879,344.20
  5. Step 5: Solve for x
    x = 110,379,879,344.20/516,453.29
  6. Step 6: Final answer
    x = 213,726.74

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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.