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Finding the Fourth Proportional to 873,173.52, 1,309,978.23 and 304,562.76

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Solution

The fourth proportional to 873,173.52, 1,309,978.23 and 304,562.76 is: 456,920.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,173.52 : 1,309,978.23 = 304,562.76 : x
  2. Step 2: Convert to fraction form
    873,173.52/1,309,978.23 = 304,562.76/x
  3. Step 3: Cross multiply
    873,173.52x = 1,309,978.23 × 304,562.76
  4. Step 4: Simplify right side
    873,173.52x = 398,970,585,268.72
  5. Step 5: Solve for x
    x = 398,970,585,268.72/873,173.52
  6. Step 6: Final answer
    x = 456,920.16

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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.